JP5314967B2 - Card game system with lottery function - Google Patents

Description

  The present invention is used in a game system that is configured by a game machine and a server to which the game machine is connected through a communication network, and that can be played by reading game data identification information stored in a game card received by the game machine. The present invention relates to a game machine that is used, and a game card that is used therefor.

  2. Description of the Related Art Conventionally, card games using a card (hereinafter referred to as a “character card”) to which a character design or ability value is attached are widely known. In this game, the player identifies a game data stored in the inserted character card by inserting, installing, scanning, etc. a predetermined character card into a game device corresponding to the predetermined character card. The game can be advanced by reading the information.

  In such card games, in many cases, in addition to the character card, a card (hereinafter referred to as “item card”) in which an item for setting the parameter of the character is stored is also used. For example, a battle-type card game is known as such a card game. The player can raise the ability value of his / her character card or lower the ability value of the opponent's character card by using both the character card and the item card. Thereby, the winning or losing of the battle is not determined only by the ability value of the character card, but the ability of one or more item cards to be used together, compatibility with the character card, the timing of use, and the like become important factors. Therefore, when the player considers the above factors at the start of the game or during the progress, variations in the card game progress increase, and the player can progress the game without getting bored.

  For example, Patent Document 1 is known as such a card game.

JP 2002-301264 A

  By the way, in a card game using both a character card and an item card as described above, parameters such as ability values and properties set for the character card and the item card are fixed for each card. For this reason, when the player gains some experience, he / she learns knowledge and strategies for proceeding with the game, such as the most appropriate combination and usage of cards in the progress of the game. That is, the player knows how to win the game, and the more the game is played, the lesser the interest in the game may be.

  Moreover, in order to maintain the player's interest, the types of character cards and item cards are increased, and event-limited (not sold) cards are issued, but these are only temporary countermeasures. In addition, the card issuance cost increases the overall cost of the card game. Therefore, a fundamental solution to such a problem is desired.

  The present invention has been made to solve such a problem, and allows game options to appear without predictability of the player without increasing the card issuing cost. It is an object of the present invention to provide a game system, a game machine, and a game card that can change the parameters of the above without predictability.

  According to a first main aspect of the present invention, a game machine configured to be connectable to a server via an information network and executing a specific game by reading game card information, the game card includes The game data identification information and the lottery code are recorded, and the game machine is added to the game data storage means for storing the game data to be loaded into the specific game, and to the loaded game data. Based on game option information storage means for storing game option information, lottery execution means for reading the lottery code of the game card and transmitting it to the server and receiving the result of the lottery from this server, based on the lottery result received from the server Game option information to be added to the game data from the game option information storage means Game option information specifying means, and game execution means for loading the game data based on the game data identification information of the game card and adding the game option information to execute the specific game. A game machine is provided.

  According to such a configuration, the game option information can be assigned by a lottery by the server. Thereby, when a specific game card related to the game option information is used, the game option information is given with a predetermined probability, and the number of times that the same play result is obtained every game play is reduced.

  Further, by executing a lottery based on a lottery code stored separately from the game card identification information, it is possible to give a game item or change a parameter of game data. Therefore, the variation of the card game can be increased without increasing the types of cards.

  In one embodiment of the present invention, the game option information stored in the game option information storage means is associated with specific game data identification information, and the game execution means includes game data identification information of a game card. When the game data is loaded based on the game data, game option information associated with the game data identification information is added and the specific game is executed. In this case, it is preferable that the game option information storage means stores at least one game option information for each piece of identification information of the game data.

  According to such a configuration, when a lottery is won, appropriate game option information can be added according to the game data of the read game card.

In another embodiment of the present invention, the lottery result game option information identification information is an arbitrary winning pattern that specifies a plurality of game option information,
The game execution means takes out one or more pieces of game option information included in the winning pattern from the game option information storage means and adds them to the game data to execute the game.

  According to such a configuration, the lottery of the game option information can execute not only “win and miss” but also various variations. For example, it is possible to set a plurality of winning patterns such as winning only 1 from three game option information, winning only 1 and 3, and winning all.

  Furthermore, in another embodiment of the present invention, the game machine is further configured to receive a user's selection regarding game option information from one or more selected game option information when the lottery is won. The game execution means includes a reception means, and when one or more pieces of game option information are selected, the game execution means adds the selected one or more game option information to the game data and executes the game. is there.

  According to such a configuration, the game can be advanced by freely selecting game option information desired by the user in accordance with the user's preference and the progress of the game.

  Furthermore, in another embodiment of the present invention, the game card includes a game card to which different lottery codes are assigned for identification information of one game data, and the lottery execution means The lottery code is read.

  According to such a structure, even if it is the same kind of game card in which the identification information of the same game data is stored, since different lottery codes may be stored, different lotteries are executed for each game card. . Thereby, even if the user owns a plurality of game cards of the same type, the user cannot predict whether or not the game option information is added, and can maintain interest in the game.

  According to a second main aspect of the present invention, the game option identification information is a server to which the above-described game machine is connected via a network, and stores game option identification information corresponding to the game option information. The storage means, the lottery code for the game card are received from the game machine, the lottery execution means for specifying the game option identification information by the lottery or determining the defeat, and the game option identification information which is the result of the lottery is transmitted from the server. And a lottery result transmission means. In this case, it is desirable that the lottery execution means execute a lottery for each game option information, determine a winning combination, and, when winning, transmit the game option identification information to the game machine.

  According to such a configuration, it is possible to execute not only “winning and losing” but also various variations of lottery by determining winning for each of a plurality of pieces of game option information. For example, among the three game option information, a lottery is executed such that No. 1 is won, No. 2 is lost, No. 3 is won.

  Furthermore, in another embodiment of the present invention, the server further comprises a lottery result history / lottery probability variation algorithm storage means for storing the lottery result history in association with the lottery code, and the lottery execution The means reads out the lottery result history relating to the transmitted lottery code from the lottery result history / lottery probability variation algorithm storage means, and in accordance with the read lottery result history, the winning option set in advance for the game option information The probability is changed, and the lottery is executed based on the changed winning probability.

  According to such a configuration, the lottery probability can be dynamically adjusted according to the lottery result history.

  According to the present invention, it is possible to make a game option appear without predictability of a player without increasing card issuing costs, and to change parameters of a character card or item card without predictability. A game system, a game machine, and a game card can be obtained.

  In addition, the present invention can maintain the user's interest by providing gambling that the user cannot predict whether or not the game option can be used and the type of the available game option based on the type of the game card to be used. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(overall structure)
FIG. 1 is a configuration diagram of a game system 1 according to an embodiment of the present invention.
As shown in FIG. 1, this game system includes a game machine 3 that executes a specific game by reading game data identification information 5 of a game card 2, and the game machine 3 via an information network such as a LAN or the Internet. And a server 4 for drawing lots of game option information to be added to the game data using the lottery code 6 of the game card 2.

  That is, in this embodiment, game option information such as weapons to be added to game data such as characters loaded in the game is determined by lottery in the server 4, and the game card 2 is a medium for the lottery. It is used as.

(Game card)
FIG. 2 is a schematic diagram showing a game card 2 used in this embodiment.
As shown in FIG. 2, the game card 2 is represented by a character name 24 indicating the contents of the game data, a character parameter 25 (attack power, defense power, etc.), and a QR code. Game data identification information 5 and a lottery code 6 are printed. The game data identification information 5 and the lottery code 6 are not limited to QR codes, but may be one-dimensional barcodes, numbers, character strings, or the like as long as they can be read by a machine by a reading device of a game machine.

(game machine)
FIG. 3 is a schematic system configuration diagram showing the game machine 3.
As shown in FIG. 3, the game machine 3 is connected to a CPU 31 built in a host computer via a system bus 32, a RAM 33, an external storage device 34 such as a ROM, an HDD, a magnetic disk, and an input / output interface (I). / F) 35 is connected. The input / output I / F 35 includes an output device 36 such as a display, game data identification information 5 and a lottery code 6 stored in the game card 2 presented at an appropriate location within a readable range by the player, optically. Alternatively, when a plurality of game option information is won by a card information reading unit 37a such as a barcode reader which is read by electronic means and lottery which will be described later, the player wants to execute one or more game option information as game option information An input device 37 having a selection receiving unit 37b such as a joystick or a push button for receiving selection, a communication device 38 such as a modem, and a drive 39 for a removable recording medium such as a CD-ROM or DVD-ROM are connected. .

  Further, the external storage device 34 has a data storage area 34a and a program storage area 34b, each of which is a fixed storage area secured in the storage device.

  The data storage area 34a is an area for storing information such as game programs, image data, audio data, and the like, and game data storage means 41 for storing game data loaded in the specific game, and the loaded data. A game option information storage means 42 for storing game option information added to the game data and a lottery pattern table storage means 43 are stored.

  In the program storage area 34b, a lottery execution means 44 for reading the lottery code 6 of the game card and transmitting it to the server 4 and receiving a lottery pattern as a result of the lottery from the server 4, and a lottery pattern received from the server The game option identification information is specified based on the game option identification information, and the game option information to be added to the game data is specified from the game option information storage means 42 based on the specified game option identification information and the game data identification information 5. Based on the option information specifying means 45 and the game data identification information 5 of the game card, the image data and sound data of the game character are read to load the game data and add the game option information to the specific game. Run game run And stage 46 are stored.

  The game data storage means 41 stores character data such as BMP, JPG, PNG, etc., such as image data such as BMP, JPG, PNG, etc. It is stored as audio data such as MID and moving image data such as AVI, RAM, and SWF.

  The game option information storage means 42 stores game option information added when a lottery is won. As shown in FIG. 7, in each game data identification information 5, an option name and option data corresponding to the game option identification information are set. The option name is represented by a character string, and the option data is image, sound, and moving image data as described above.

  The lottery pattern table storage means 43 stores the lottery pattern table 7 shown in FIG. This table 7 stores a lottery pattern drawn by the server 4 in association with one or more game option identification information. As will be described later, when the server 4 performs a lottery for winning one of the lottery patterns, it is specified which game option identification information is won according to the lottery pattern table 7. Thus, by registering the lottery pattern on the game machine side, different options can be added for each game data or for each game machine even with the same lottery result (winning or winning process can be executed).

  The lottery execution means 44 transmits the lottery code 6 read by the card information reading unit 37a to the server 4 that executes the lottery via the communication device 38. Further, the lottery execution unit 44 receives a lottery pattern as a result of the lottery from the server 4 and transmits the lottery pattern to the game option information specifying unit 45.

  The game option information specifying unit 45 specifies the winning game option identification information based on the lottery pattern and the lottery pattern table 7 transmitted. Further, based on the game data identification information 5 read by the card information reading unit 37a and the specified game option identification information, the game option information storage means 42 is searched for game option information.

  Based on the game data identification information 5 read by the card information reading unit 37a, the game execution means 46 receives image data such as BMP, JPG, PNG, and WAV, WMA, MID, etc. from the game data storage means 41. The game data is executed by taking out the audio data and converting the various data into a prescribed data format. Further, the game is advanced by performing arithmetic processing in accordance with an operation signal input from the input device by the player. In addition, when the game option identification information is searched as described above and selected by the selection receiving unit 37b, the game execution means 46 performs predetermined arithmetic processing such as color correction, contrast adjustment, and image effect processing. The image or moving image data of the selected game option information and the image or moving image data of the game data being executed are combined. Then, along with the synthesized image or moving image, sound data such as sound effects at the time of appearance of the selected game option information is transferred to the output device 36. Thereby, it is possible to display the game option information such as the item so that it does not appear floating or feels uncomfortable as compared with the background image. Further, by making the game option information conspicuous, it is possible to give the player “a sense of superiority when winning”. In addition to the image adjustment as described above, the game data such as the attack power and defense power being executed is rewritten with the game data related to the selected game option information, and the rewritten game data such as attack power and defense power Is transmitted to the output device 36.

  These components are actually a series of instructions as a computer software program, and are called up on the RAM 33 by the CPU 31 and expanded and executed, thereby constituting each component of the present invention. ing.

(server)
FIG. 4 is a schematic system configuration diagram showing the server 4.
As shown in FIG. 4, the server 4 is connected to a CPU 51 built in the host computer via a system bus 52, an RAM 53, an external storage device 54 such as a ROM, an HDD, and a magnetic disk, and an input / output interface (I / F). ) 55 is connected. The input / output I / F 55 includes an output device 56 such as a display, an input device 57 such as a keyboard and a mouse, a communication device 58 such as a modem, and a drive 59 for a removable recording medium such as a CD-ROM or DVD-ROM. It is connected.

  As shown in FIG. 4, the external storage device 54 includes a data storage area 54a and a program storage area 54b, which are fixed storage areas secured in the storage device.

  In the data storage area 54a, a lottery result history / lottery probability changing algorithm storage means 61 for storing a lottery result history for the lottery code 6 is stored.

  The program storage area 54b receives the lottery code 6 of the game card from the game machine 3, and determines the game option identification information by lottery or determines the lottery execution means 62, and the result of the lottery from this server. A lottery result transmission unit 63 that transmits a lottery pattern and a lottery result history update unit 64 that updates a lottery result history for the lottery code 6 are stored.

  The lottery result history / lottery probability variation algorithm storage means 61 stores the lottery result history for the lottery code 6 in association with the lottery code 6. Specifically, the lottery result history is, for example, for a specific lottery code 6 that has been drawn 10 times in the past, won the game option identification information 1 three times, won the game option identification information 2 twice, It is information such as having been lost five times. The lottery result history / lottery probability variation algorithm storage means 61 stores a lottery probability variation algorithm. By executing the lottery probability changing algorithm, the lottery probability used in the lottery described later is changed. Specifically, for example, in the case of the 1st to 10th lottery, or the 11th or more lottery and the number of wins of the specific event X is 3 or more, the lottery is executed with a preset winning probability. If the number of wins is 11 or more and the number of wins for a specific event X is 3 or less, the lottery is executed with a win probability that is a P% increase of the preset win probability, etc. The algorithm is set.

  The lottery execution means 62 executes a lottery based on the lottery code 6 received from the game machine 3 via the communication device 48. Specifically, the lottery execution means 62 generates a random number using, for example, a random number generation algorithm, and performs a predetermined calculation based on the random number and the lottery code 6, thereby obtaining any one of the lottery patterns shown in FIG. It has a function to perform a lottery to be determined.

  The lottery result transmitting means 63 has a function of transmitting the lottery pattern number of the lottery result together with the lottery code 6 received from the game machine 3 to the game machine 3 via the communication device 48.

  The lottery result history updating unit 64 associates the lottery result history stored in the lottery result history / lottery probability variation algorithm storage unit 61 with the lottery code 6 for the lottery code 6 used for the lottery after the lottery execution unit 62 performs the lottery. Update.

  Similar to the above game machine, each of these components is actually a series of instructions as a computer software program, and will be described in detail later by being called out on the RAM 53 and executed by the CPU 51. There exists an effect | action and it comprises each component of this invention.

  Hereinafter, detailed configurations of the respective components of the game machine and the server will be described in detail by explaining actual game play operations. In the following, a battle type card game based on a battle between fictional creatures will be described.

(Operation)
FIG. 8 is a flowchart showing the operation of each component. In addition, each code | symbol S1-S14 in a figure respond | corresponds to each step S1-step S14 in the following description.

  First, in step S <b> 1, when the player presents the game card 2 of “Soldier” in a slot (not shown) provided in the game machine 3, the card information reading unit 37 a of the game machine 3 stores the game stored in the game card 2. The data identification information 5 and the lottery code 6 are read, and the read game data identification information 5 is transmitted to the game execution means 46 (step S1). The game execution means 46 extracts game data related to the soldier from the game data storage means 41 based on the transmitted game data identification information 5. For example, the identification number A001 is “Soldier”, the identification number A002 is “Wizard”, and so on. That is, the identification number A001 is stored as the game data identification information 5 in the “Soldier” game card 2 shown in FIG. Subsequently, the game execution means 46 transmits the extracted game data such as “Soldier” as the name, “3” as the attack power, “4” as the defense power, etc. to the output device 36, and the output device 36 displays FIG. As shown in A), appropriate sound and images are displayed (step S2).

  In addition, the lottery code 6 read by the card information reading unit 37a in step S1 is transmitted to the lottery execution means 44, and the lottery execution means 44 transmits the lottery code 6 to the server 4 via the communication device 38 (step S3). ). When the server 4 receives the lottery code 6 via the communication device 48, the lottery execution means 62 of the server 4 performs a predetermined calculation based on the random number and the lottery code 6 in the subsequent steps S4 to S10. A lottery for determining any one of the lottery patterns in FIG. 6 is executed.

  In the lottery of the server 4, first, in step S4, the lottery execution means 62 acquires the lottery result history for the received lottery code 6 from the lottery result history / lottery probability variation algorithm storage means 61 (step S4). Next, the lottery execution means 62 executes the lottery by changing the winning probability according to the read lottery result history. The change of the winning probability is performed by the lottery execution unit 62 reading out and executing the lottery probability variation algorithm from the lottery result history / lottery probability variation algorithm storage unit 61. Specifically, for example, in the case of the 1st to 10th lottery, or the 11th or more lottery and the number of wins for the specific event X is 3 or more, the lottery is executed with a preset winning probability. If the number of wins is 11 or more and the number of wins for a specific event X is 3 or less, the lottery is executed with a winning probability obtained by increasing the preset winning probability by P%. (Step S5 to Step S8). Alternatively, if the specific lottery code 6 wins the specific game option identification information 0 to 3 times regardless of the number of lotteries, the probability of winning the specific game option identification information is set to 20%. If it is more than once, it may be 10%.

  After the lottery as described above is executed, the lottery result transmission means 63 transmits the lottery pattern number of the lottery result to the game machine 3 through the communication device 48 together with the received lottery code 6 (step S9). Subsequently, the lottery result history update unit 64 updates the lottery result history stored in the lottery result history / lottery probability variation algorithm storage unit 61 in association with the lottery code 6 (step S10).

  The lottery execution means 44 of the game machine 3 receives the lottery code 6 and the winning game option identification information through the communication device 38. Then, the lottery execution means 44 confirms whether or not the received lottery code 6 matches the lottery code 6 transmitted in step S3 (step S11). Thereafter, the game option information specifying means 45 collates the lottery pattern number received from the server 4 with the lottery pattern table 7 stored in the lottery pattern table storage means 43 to determine which game option identification information is won. get. Next, the game option information specifying unit 45 stores the game stored in the game option information storage unit 42 based on the game data identification information 5 read by the card information reading unit 37a in step S1 and the winning game option identification information. The game option information corresponding to the read game data identification information 5 is searched from the option information table 8 (step S12).

  Thereafter, the selection receiving unit 37b receives selection of one or more game option information desired by the player from the searched game option information (step S13). Then, the game option information specifying means 45 transmits the option name for the selected game option information to the output device 36 as a video signal, and also displays the image of the selected game option information and the sound effect at the time of appearance. Data is transmitted to the game execution means 46. Then, the game execution means 46 performs a predetermined calculation process such as image editing or image adjustment on the data about the selected game option information such as sound effects and symbols at the time of appearance and the already loaded game data. The synthesized video and audio signals are transmitted to the output device 36 (step S14). The game execution means 46 rewrites the game data such as the attack power and defense power of the loaded game data in accordance with the type of the selected game option information together with the image / sound calculation processing, and rewrites the game data. The game data, such as the attack power and defense power, is transmitted to the output device 36.

  FIG. 5 is a diagram showing an example in which the game execution means 46 temporarily adds the searched game option information to the game data. For example, if the character specified by the game data identification information 5 is “Soldier” and the searched game option information is “Armor”, the “Armor” related to the search is displayed attached to “Soldier”. . At this time, the parameters of the “Soldier” before addition of the searched game option information are “Attack 3 and Defense 4” (FIG. 5A), but after the game option information is added, “Attack 3” , Defense power 5 ”(FIG. 5B). The temporarily added game option information is removed from the game data when the play ends, and the parameters of “Soldier” return to “Attack 3 and Defense 4”.

  The above is description of the game process at the time of using the game card 2, the game machine 3, and the server 4 which concern on this invention. It should be noted that the basic rules relating to card games other than the predetermined game processing in the above-described game progress (for example, physical strength points decrease due to damage due to attacks, etc., when physical strength becomes zero, etc.) It is the same as the game.

  In this embodiment, the server 4 includes the lottery execution means 62, but the lottery execution means 44 of the game machine 3 may have the same lottery function. In this case, the external storage device 34 of the game machine 3 further includes a lottery result history / lottery probability variation algorithm storage unit, and the lottery execution unit 44 can execute the lottery described above.

  In addition, this invention is not limited to said embodiment, A various deformation | transformation is possible in the range which does not change the summary of invention. For example, the lottery described above may be such that the lottery execution means 62 of the server 4 performs a lottery for each predetermined game option identification information. In this case, after the lottery, the lottery result transmission means 63 transmits information about which game option identification information is won together with the lottery code 6 to the game machine 3. Then, the game option information specifying unit 45 searches the received game option identification information.

FIG. 1 is a configuration diagram of a game system according to the present invention. FIG. 2 is a schematic diagram showing a game card according to the present invention. FIG. 3 is a schematic system configuration diagram showing a game machine according to the present invention. FIG. 4 is a schematic system configuration diagram showing a server according to the present invention. FIG. 5 is a diagram showing a play screen of the game machine according to the present invention. FIG. 6 is a diagram showing a lottery pattern table according to the present invention. FIG. 7 shows a game option information table according to the present invention. FIG. 8 is a diagram showing a flowchart of the game progress according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Game system 2 ... Game card 3 ... Game machine 4 ... Server 5 ... Game data identification information 6 ... Lottery code 7 ... Lottery pattern table 8 ... Game option information table 23 ... Card name 24 ... Character pattern 25 ... Character parameter 31 ... CPU
32 ... System bus 33 ... RAM
34 ... External storage device 34a ... Data storage area 34b ... Program storage area 35 ... Input / output interface (I / F)
36 ... Output device 37 ... Input device 37a ... Card information reading unit 37b ... Selection receiving unit 38 ... Communication device 39 ... Drive 41 ... Game data storage means 42 ... Game option information storage means 43 ... Lottery pattern storage means 44 ... Lottery execution means 45 ... Game option information specifying means 46 ... Game executing means 51 ... CPU
52 ... System bus 53 ... RAM
54 ... External storage device 54a ... Data storage area 54b ... Program storage area 55 ... Input / output interface (I / F)
56 ... output device 57 ... input device 58 ... communication device 59 ... drive 61 ... lottery result history / lottery probability variation algorithm storage means 62 ... lottery execution means 63 ... lottery result transmission means 64 ... lottery result history update unit

Claims (9)

A game machine configured to be connectable to a server via an information network and executing a specific game by reading game card information,
In the game card, game data identification information and a lottery code are recorded,
The game machine
Game data storage means for storing game data loaded in the specific game;
Game option information storage means for storing game option information to be added to the loaded game data;
A lottery execution means for reading the lottery code of the game card and transmitting it to the server, and receiving the result of the lottery from the server;
Game option information specifying means for specifying game option information to be added to the game data from the game option information storage means based on the lottery result received from the server;
Game execution means for loading the game data based on the game data identification information of the game card and adding the game option information to execute the specific game;
A game machine comprising: The game machine according to claim 1,
The game option information stored in the game option information storage means is associated with specific game data identification information,
The game execution means adds the game option information associated with the game data identification information when the game data is loaded based on the game data identification information of the game card, and executes the specific game. A game machine characterized by A game machine according to claim 2,
The game option information storage means stores at least one game option information for each piece of identification information of the game data. The game machine according to claim 1,
The game option information identification information that is the lottery result is an arbitrary winning pattern that specifies a plurality of game option information,
The game execution means is configured to take out one or more game option information included in the winning pattern from the game option information storage means and add the game data to the game data to execute the game. . The game machine according to claim 1, further comprising:
A selection receiving means for receiving a user's selection regarding game option information from one or more selected game option information when winning the lottery;
The game execution means adds one or more selected game option information to the game data and executes the game when one or more game option information is selected. Game machine to play. The game machine according to claim 1,
The game card includes a game card to which a different lottery code is assigned for identification information of one game data,
The said lottery execution means reads the lottery code of the said game card. The game machine characterized by the above-mentioned. A game machine according to claim 1 connected via a network,
Game option identification information storage means for storing game option identification information corresponding to the game option information;
A lottery execution means for receiving a lottery code of the game card from a game machine, specifying the game option identification information by lottery or determining a loss;
Lottery result transmission means for transmitting game option identification information as a result of the lottery from the server;
The server characterized by having. The server according to claim 7, wherein
The server according to claim 1, wherein the lottery executing means executes a lottery for each game option information to determine a win, and when winning, transmits the game option identification information to the game machine. 8. The server according to claim 7, further comprising:
A lottery result history / lottery probability variation algorithm storage means for storing the lottery result history in association with the lottery code;
The lottery execution means reads a lottery result history relating to the transmitted lottery code from the lottery result history / lottery probability variation algorithm storage means, and the game option information is preset according to the read lottery result history. The server is characterized in that the winning probability is changed and a lottery is executed based on the changed winning probability.

Images