Tanks of Freedom
Turn-based modern warfare strategy game using pixel art with a casual style.
Mac
Battle for Wesnoth
Turn-based strategy game with a high fantasy theme supporting single and multiplayer.
FreeCiv – A turn-based, open source Civilization clone.
Title: FreeCiv. Developer: Various. Version: 2.4.4 Birthdate: 1995. Development Status: Full Release. Requirements: Windows, Mac, or Linux. Rating: 10/10. Site: http://www.freeciv.org/ Description: A clone of Civilization. Features: Multiple Player. Artificial Intelligence. Single Player. Screenshot:
Crimson Fields Open Source War Strategy Game.
Title: Crimson Fields. Developer: Open Source.Version: 0.5.3Birthdate: 2000(?)Development Status: Late Beta, Abandoned.Requirements: Windows, Mac OS X, Linux.Rating: 7/10.Site: http://crimson.seul.org/Description: A hex-based sci-fi wargame. Includes a number of individual scenarios as well as two campaigns. Also includes some utilities for adding your own levels to the game. Features: Turn-Based. Single Player. Multiple Player. Play-By-EMail (PBEM). Screenshot:
Advanced Strategic Command – An Open Source Turn-Based Strategy Game
Title: Advanced Strategic Command. Developer: Val Harris and Others. Version: 2.6.0 Birthdate: Unknown. Development Status: Full Release. Requirements: Windows, Linux, Mac OS X. Rating: 8/10. Site: http://www.asc-hq.org/ Description: A tactical science fiction turn-based wargame, somewhat similar to Battle Isle. Features: Single Player. Turn-Based Engine. Multiple Player. Screenshots: