eRepublik - eRepublik is a Free to play, Browser-based and Massively Multiplayer Online video game created and published by eRepublik Labs.
TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.
eDominations - multiplayer strategy game
Puzzle Strike - Puzzle Strike is a Puzzle, Board, Single and Multiplayer video game created and published by Sirlin Games.
eDominacy - Multiplayer strategy game that allows users to run the economy, conquer other nations, become a politician and rule a country,or liberate your country and start a resistance war.
Othello - Othello is a Puzzle, Board, Single and Multiplayer video game in which the main task of the player increases his marbles in order to win the game.