Free Game Alliance

The Free Game Alliance is a group of constantly evolving open source games, one for each genre.

MegaGlest

MegaGlest
MegaGlest is an open source real-time strategy game, where you develop the armies of one of seven different factions, fight glorious...

Xonotic

Xonotic
Xonotic is a fast paced free, open-source first person shooter (arena style) licensed under the GNU General Public License.