TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.

Hedgewars - Hedgewars is a Free to play, Single-player and Turn-based Strategy video game developed by Hedgewars Development Team.

Domination - Domination is a game that is a bit like the well known board game of Risk.

Counter-Strike 2D - Top-Down Multiplayer Shooter

Ticket to Ride - Ticket to Ride is a Turn-based Strategy, Puzzle, Board, Co-op, Single, and Multiplayer video game created and published by Days of Wonder and Asmodee Digital.

Ironfell - Ironfell is a time travel themed massive multi-player online real time strategy game.