Sid Meier’s Civilization VI - Sid Meier’s Civilization VI is a Turn-based Strategy, War, Tactical, Single and Multiplayer video game created by Firaxis and published by 2K.

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

FreeCiv - Freeciv is an open-source, turn-based strategy game based on Civilization II.

ThumbZilla - Awesome thumb stomping and kicking action game.

C-evo - C-evo is a freeware empire building game for Windows

Warlight - Warzone is a customizable Risk-like strategy game where you compete with your friends to conquer the world.