Free casual strategy games

Hexplode
Hexplode is a great strategy/tactics game where you have to beat your opponent on an hexagonal board. Claim tiles and try to conquer your opponent's territories.

3D logic II
The second game, same thing as the first one, but with new challenges and great new backgrounds. As much fun as the first one, with new challenges and options.

Proximity
Try to control the most armies by the end of the game, in this original pc game. Each turn you can control one more tile, but make sure to choose carefully where you put your next troops.