Quote Originally Posted by M1AU View Post
But yes, you're right, there are already a lot of multiplayer games out there and very few singleplayer games.

Personally I think one of the best singleplayer scenarios would be some kind of RPG based FPS game such as Deus-Ex for the Windows platform.
Unfortunately I don't see something like this coming in the near future.
You'll see more OSS singleplayer games after id tech 4 is released under the GPL sometime after the next Wolfenstein game is released.