Disgaea 3 is a sequel to Disgaea, a hardcore, turn-based, strategy RPG popular on the PlayStation 2 and PlayStation Portable. In Disgaea, character units have a limit to their movement and attack ranges, based on level and weapons equipped. There are other special game factors that let you take advantage of the 3D battle map, many of which are unique to Disgaea.

* Geo Block - A cube-shaped terrain-altering object. Players can use it to access and attack enemies where normally they cannot reach.
* Geo Panel - A group of stat-altering elemental properties that are placed upon certain parts of the battlefield. When there are one or more colored panels on the battle grid, it means an element can affect that area. The effect can boost or reduce your units stats.
* Item World - A special randomly-generated battle stage within each and every item you find. By defeating these special battle stages, you are able to strengthen your items.