The present invention relates to a combat game providing device comprising: a receiving unit for receiving input information from a player; a player vs environment (PvE) game providing unit, which primarily requests a PvE player to arrange one or more player characters (PCs) among a plurality of PCs possessing preset actions in a plurality of preset cells when input information corresponding to a PvE game is received, and secondarily requests the order, in which actions possessed by the arranged PCs are executed, to be set, thereby providing, to the PvE player, a PvE game for fighting with one or more non-player characters (NPCs) among a plurality of preset NPCs; and a player vs player (PvP) game providing unit, which requests a PvP player to arrange PCs one by one, among the plurality of PCs in the plurality of cells, according to the order determined by preset rules, and provides, to the PvP player, a PvP game for fighting by executing actions possessed by the arranged PCs according to the arranged order thereof.