Tactics Ogre is a 3D isometric tactical role-playing game. The player starts out with a band of troops, builds a small army and fights many battles with choices to make in between, that will determine which one of the eight possible endings will be reached in a non-linear storyline. The player has the option to recruit characters, control individual equipment of each character, with over six male character classes, six female character classes, three demi-human classes, and more. It is also possible to train at safe locations to prepare the army before the next battle or storyline advancement.
The game follows the adventure of a claymation character named Klaymen as he discovers his origins and his purpose in a world made entirely out of clay.