Xconq is an engine for turn-based strategy games. Variety of game genres run under Xconq: historical, sci-fi, fantasy, and modern. AIs. Network games. Multiple UIs and platforms. Easy-to-learn game design language. Large games library available
Great concept. Very mature project. I've had problems with the graphics libraries on Windows though. The UI is also a bit large. My biggest wish is to be able to do more in the way of graphics other than non-animated static 2D sprites. At the very least, one should be able to create directional sprites that can turn to face one of the cardinal directions. Support for heightfields would also be awesome. Finally, being able to load an external game/app based on the outcome of a turn (such as the real-time battle engine in Total War, or to communicate with a persistent server) would have been good.