Labyrinth Hero is a bite-sized roguelike game where each floor consists of only two enemies, a treasure chest, a switch and a hidden staircase. You can play with either the keyboard or mouse, but your hero will only travel at half speed because every living creature on the floor will have their turn just after you've made your move. Once you've dispatched both enemies, the movement speed will then be restored back to normal.

Your maximum hit point is increased by one whenever you put down an enemy. If you lose at any stage you can begin from the first floor with your previous hit point stats, simply by selecting yes to the question asked after you've clicked on the play option. There are only ten floors to explore, and the quest is completed once you've discovered the magical crystal ball somewhere in the final level.