TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.
ThumbZilla - Awesome thumb stomping and kicking action game.
Lux Delux - Lux Delux is a game of strategy and domination inspired by the board game Risk.
World Conqueror 1945 - World Conqueror 1945 is a strategy game based on WWII (Super Risk).
Streets of Chaos - Streets of Chaos is a Puzzle, Tactical, Turn-based Strategy and Single-player Simulation created by SimProse Studios.
Age of Civilizations - Turn based strategy game, Risk-like