TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.
Domination - Domination is a game that is a bit like the well known board game of Risk.
Legends of Callasia - Unique blend real-time and turn-based elements in a Risk-like war game.
ThumbZilla - Awesome thumb stomping and kicking action game.
Warlight - Warzone is a customizable Risk-like strategy game where you compete with your friends to conquer the world.
eRepublik - eRepublik is a Free to play, Browser-based and Massively Multiplayer Online video game created and published by eRepublik Labs.