I posted this in the gaming section and I thought it would be better to post it here.
I have came up with the idea of making an FPS game. Though I dont know which game engine to use I need one that supports Mac, Windows, and Linux. The game would have single player (Storyline) and multiplayer. The game is going to have a huge enviroment.
I was thinking about the Quake 2 engine but I decided to ask someone about what engine to use. Please tell me what game engine you would reccomend.
Oh yeah, and the engine has to be free.