Battle for Wesnoth http://www.wesnoth.org/
Vulture's Eye http://www.darkarts.co.za/vulture
OpenArena http://www.openarena.ws/smfnews.php
FreeCiv http://freeciv.wikia.com/wiki/Main_Page
Naev http://code.google.com/p/naev/
UfoAI http://ufoai.org/wiki/News
AlephONE/Marathon http://marathon.sourceforge.net/
Hidden and Dangerous http://www.atomicgamer.com/files/31068/hidden-dangerous-deluxe-full-game
Scummvm http://scummvm.org/ + Game packs (scroll down) http://scummvm.org/downloads/
OpenTTD http://www.openttd.org/en/
Warzone 2100 http://wz2100.net/
Ur Quan Masters http://sc2.sourceforge.net/
Unknown Horizons http://www.unknown-horizons.org/download/
FreeCol https://en.wikipedia.org/wiki/SourceForge.net
BosWars http://www.boswars.org/
WideLands http://wl.widelands.org/
