Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.
Internet server for Linux Air Combat
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Turn based Civ-like strategy game
action/combat flight sim
The Official Forums of Eye of Dawn
AMAC is a modern air combat tactical PC game in simultaneous turn.
Avatar - The Last Airbender You are an element bender
A simulation of modern tactical naval warfare.