Method and system for expanding placement space of unit in game

1. A method of expanding a unit placement space, the method comprising:

allocating at least one of a plurality of unit spaces constituting a field of a game instance to a user as the unit placement space in response to initiating the game instance in a game;

providing the user with a space expansion function of expanding the unit placement space by purchasing a unit space using resources allocated to the user in the game or in the game instance during a progress of the game instance;

identifying a game item for applying an effect to the game instance deployed on at least a portion of the expanded unit placement space;

proceeding with the game instance (i) based on a unit of the user included in the unit placement space, and (ii) in response to expanding the unit placement space using the space expansion function, based on a unit of the user included in the expanded unit placement space;

deploying the game item for applying the effect to the game instance on at least one of the plurality of unit spaces not yet purchased through the space expansion function; and

in response to the at least one of the plurality of unit spaces being purchased through the space expansion function and becoming part of the expanded unit placement space, applying the effect corresponding to the game item to at least one of

i) the expanded unit placement space on which the game item is deployed,

ii) the unit of the user, or

iii) a unit of a counterpart of the user in the game instance.

2. The method of claim 1 , wherein a unit space purchasable through the space expansion function is limited to a unit space adjacent to the unit placement space allocated to the user.

3. The method of claim 1 , wherein

the field is divided into the plurality of unit spaces by a plurality of cells in a grid shape, and

the method further comprises,

graphically displaying the plurality of cells in the grid shape on the field in response to the user activating the space expansion function,

purchasing, using the resources, a unit space corresponding to a cell, from among the plurality of cells, adjacent to the unit placement space allocated to the user, and

expanding the unit placement space by adding the purchased unit space to the unit placement space.

4. The method of claim 1 , further comprising:

providing the user with a unit purchase function of purchasing a unit using the resources, in the game instance; and

placing a unit purchased through the unit purchase function on a unit space selected by the user from among the plurality of unit spaces included in the unit placement space or the expanded unit placement space.

5. The method of claim 1 , further comprising:

setting an amount of the resources for purchase to be different with respect to each of at least two of the plurality of unit spaces.

6. The method of claim 1 , further comprising:

setting an amount of the resources to purchase each of the plurality of unit spaces based on a distance from a headquarter allocated to the user or a distance from the unit placement space in the game instance.

7. The method of claim 1 , wherein the deploying the game item comprises changing a level of the effect corresponding to the game item based on (i) a distance between the unit space to which the game item is deployed and a headquarter allocated to the user in the game instance or (ii) a distance between the unit space to which the game item is deployed and the unit placement space.

8. The method of claim 1 , wherein the deploying the game item comprises dynamically changing at least one of a type of the game item, a number of game items, or a location at which the game item is deployed based on an intermediate result according to the progress of the game instance.

9. The method of claim 1 , wherein the proceeding includes:

proceeding with the game instance based on a plurality of turns, and

providing an amount of the resources for each unit space included in the unit placement space of the user per new turn.

10. A non-transitory computer-readable recording medium storing instructions that, when executed by a processor, cause the processor to perform the method of claim 1 .

11. A computer apparatus comprising:

at least one processor configured to execute computer-readable instructions, the at least one processor is configured to,

allocate at least one of a plurality of unit spaces constituting a field of a game instance to a user as a unit placement space in response to initiating the game instance in a game,

provide the user with a space expansion function of expanding the unit placement space by purchasing a unit space using resources allocated to the user in the game or in the game instance during a progress of the game instance,

identify a game item for applying an effect to the game instance deployed on at least a portion of the expanded unit placement space; and

proceed with the game instance (i) based on a unit of the user included in the unit placement space, and (ii) in response to expanding the unit placement space using the space expansion function, based on a unit of the user included in the expanded unit placement space,

wherein the at least one processor is configured to deploy the game item to the at least a portion of the expanded unit placement space by,

deploying the game item for applying the effect to the game instance on at least one of the plurality of unit spaces not yet purchased through the space expansion function, and

in response to the at least one of the plurality of unit spaces being purchased through the space expansion function and becoming part of the expanded unit placement space, applying the effect corresponding to the game item to at least one of

i) the expanded unit placement space on which the game item is deployed,

ii) the unit of the user, or

iii) a unit of a counterpart of the user in the game instance.

12. The computer apparatus of claim 11 , wherein the at least one processor is configured to limit a unit space purchasable through the space expansion function to a unit space adjacent to the unit placement space allocated to the user.

13. The computer apparatus of claim 11 , wherein

the field is divided into the plurality of unit spaces by a plurality of cells in a grid shape, and

the at least one processor is configured to,

graphically display the plurality of cells in the grid shape on the field in response to the user activating the space expansion function,

purchase, through the resources, a unit space corresponding to a cell from among cells adjacent to the unit placement space allocated to the user, and

expand the unit placement space by adding the purchased unit space to the unit placement space.

14. The computer apparatus of claim 11 , wherein the at least one processor is configured to

provide the user with a unit purchase function of purchasing a unit using the resources, in the game instance, and

place a unit purchased through the unit purchase function on a unit space selected by the user from among a plurality of unit spaces included in the unit placement space or the expanded unit placement space.

15. The computer apparatus of claim 11 , wherein the at least one processor is configured to

set an amount of the resources for purchase to be different with respect to at least two of the plurality of unit spaces.

16. The computer apparatus of claim 11 , wherein the at least one processor is configured to

set an amount of the resources to purchase each of the plurality of unit spaces based on a distance from a headquarter allocated to the user or a distance from the unit placement space in the game instance.

17. The computer apparatus of claim 11 , wherein

the at least one processor is configured to proceed with the game instance based on a plurality of turns, and

provide an amount of the resources for each unit space included in the unit placement space per new turn.

18. The method of claim 1 , further comprising:

providing a user interface for activating the space expansion function.