Galacticwar in short GCW is a first-person shooter which can be played as singleplayer or multiplayer. Updates are coming monthly and the language is english. It looks like Unreal Tournament but just the a few skins has been taken. It can also be played as a thid-person shooter. A campaign will be available soon and now there are 14 maps with it.
This is the free and full version of Galacticwar for the Mac. Have fun!