The Battle for Wesnoth is a turn-based strategy game with a fantasy theme. (ZPL)
Linux - FreeBSD - Windows
Freeciv is a Free and Open Source empire-building strategy game inspired by the history of human civilization. The game commences in prehistory and your mission is to lead your tribe from the stone age to the space age. (GPL)
Linux - FreeBSD - Windows - macOS
FreeCol is a turn-based strategy game based on the old game Colonization, and similar to Civilization. (GPL)
Cross-platform
Globulation 2 is an innovative Real-Time Strategy (RTS) game which reduces micro-management by automatically assigning tasks to units. (GPL)
Linux - FreeBSD - Windows - macOS
Hedgewars is a turn based strategy game but the real buzz is from watching the devastation caused by those pesky hedgehogs with those fantastic weapons! (GPL)
Linux - FreeBSD - Windows
Scorched 3D is a game based loosely (or actually quite heavily now) on the classic DOS game Scorched Earth "The Mother Of All Games". (GPL)
Linux - FreeBSD - Windows - macOS
Widelands is a slow-paced real-time strategy free computer game under the GPL. (GPL)
Linux - FreeBSD - Windows - macOS
7 applications