A powerful 2D game engine
FIFE stands for Flexible Isometric Free Engine and is a cross platform game creation framework. It provides you with the ability to create a game using Python interfaces.
You can make just about any 2D game with FIFE but it is more geared toward a RTS or RPG in just about any view style (isometric ortop-down). For more information on FIFE's capabilities visit the Features page.