FreeCiv - Freeciv is an open-source, turn-based strategy game based on Civilization II.
The Battle for Wesnoth - The Battle for Wesnoth is a turn-based tactical strategy game with a high fantasy theme.
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.
UniWar - UniWar is a turn-based strategy game where players battle it out on the field with units of...
Widelands - Widelands is a free, open source real-time strategy game with singleplayer campaigns and a...
TripleA - TripleA is a free (under GPL) turn based strategy game based on Axis & Allies board game.