Method for providing battle game, server device, and computer-readable recording medium

1. A method for providing a battle game to each of a plurality of client devices via a network, comprising:

storing, by a server device, for each of a plurality of characters, a parameter which serves as an indicator for developing the battle game;

displaying, by a processor of said client device of a player who operates a character not belonging to any specific group, on a display device of the client device, a screen prompting said player to decide or select a group to which the character belongs; and

performing, by a processor of the server device, presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

2. The method according to claim 1 , wherein displaying, by the processor of the client device, comprises displaying a screen for searching for a group in the battle game.

3. The method according to claim 1 , wherein displaying, by the processor of the client device, comprises displaying a screen for forming a new group by the player.

4. A method for providing a battle game to each of a plurality of client devices via a network, comprising:

storing, by a server device, for each of a plurality of characters, a parameter which serves as an indicator for developing the battle game:

displaying, by a processor of said client device of a player who operates a character belonging to a specific group, on a display device of said client device, a screen showing information about the specific group; and

performing, by a processor of the server device, presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

5. The method according to claim 1 , wherein the presentation processing of increasing the effect of attack by the group more when the number of successive attacks by a plurality of characters belonging to the same group is larger is performed.

6. The method according to claim 1 , wherein the parameter indicates any of a degree of proficiency in the battle game, a reward acquired in the battle game, and a time elapsed from a date of participation in the battle game.

7. A non-transitory computer-readable recording medium having recorded therein program code instructions that, when executed by a computer, provide:

causing a client device of a player who operates a character not belonging to any specific group, to display a screen prompting to decide or select a group to which the character belongs;

storing, for each character, a parameter which serves as an indicator for developing a battle game; and

performing presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

8. A non-transitory computer-readable recording medium having recorded therein program code instructions that, when executed by a computer, provide:

causing a client device of a player who operates a character belonging to a specific group, to display a screen showing information about the specific group;

storing, for each character, a parameter which serves as an indicator for developing a battle game; and

performing presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

9. A method executed in a client device operated by a player, the client device being connectable to a server device via a communication line, the method comprising:

receiving, by a processor of the client device, information necessary for a battle game from the server device;

displaying, by the processor, on a display device of the client device of the player who operates a character not belonging to any specific group, a screen prompting the player to decide or select a group to which the character belongs; and

displaying, by the processor, on the display device, presentation processing of increasing, according to a difference in a parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

10. A method executed in a client device operated by a player, the client device being connectable to a server device via a communication line, the method comprising:

receiving, by a processor of the client device, information necessary for a battle game from the server device;

displaying, by the processor, on a display device of the client device of the player who operates a character belonging to a specific group, a screen showing information about the specific group; and

displaying, by the processor, on the display device, presentation processing of increasing, according to a difference in a parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

11. A server device comprising:

a processor operative to cause a client device of a player who operates a character not belonging to any specific group, to display a screen prompting to decide or select a group to which the character belongs;

a storage resource operative under command of the processor to store, for each character, a parameter which serves as an indicator for developing a battle game; and

the processor further being operative to perform presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

12. A server device comprising:

a processor operative to cause a client device of a player who operates a character belonging to a specific group, to display a screen showing information about the specific group; and

a storage resource operative under command of the processor to store, for each character, a parameter which serves as an indicator for developing a battle game;

the processor further being operative to perform presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

13. A system comprising: a client device operated by a player; and a server device for providing a battle game to each client device via a network, the server device comprising:

a processor operative to cause the client device of the player who operates a character not belonging to any specific group, to display a screen prompting to decide or select a group to which the character belongs; and

a computer-readable recording medium operative under command of the processor to store, for each character, a parameter which serves as an indicator for developing the battle game;

the processor further being operative to perform presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.

14. A system comprising: a client device operated by a player; and a server device for providing a battle game to each client device via a network, the server device comprising:

a processor operative to cause the client device of the player who operates a character belonging to a specific group, to display a screen showing information about the specific group; and

a computer-readable recording medium operative under command of the processor to store, for each character, a parameter which serves as an indicator for developing the battle game;

the processor further being operative to perform presentation processing of increasing, according to a difference in the parameter between two characters belonging to the same group and successive in attack order, an effect of attack by the group.