Disgaea: Hour of Darkness is a tactical role-playing video game and the first game in the Disgaea series. Battle gameplay takes place on a map divided into a square grid. The player controls a squad of humanoid units and monsters, which each occupy a single square of the grid and do combat with a group of enemies. Depending on the character and attack selected, the player will be able to deal damage to a specific enemy unit or a designated region of the map. Combat ends when all enemy units or all of the player's units are destroyed.