The playable version is pretty barebones at this point, but the devs are showing off an upcoming version on Youtube that blows it away. I'm expecting big things from Starforge.

An incredibly fun racing game that shines in multiplayer thanks to its wealth of player-created content. Tracks, cars, horns, avatars, and even campaigns and game modes can be created for TrackMania 2. There's actually *two* versions of the track editor: a simple one for beginners and a fully-featured one for advanced track builders. If you like racing games, this will be the best $20 ever spent.

Recommending this game before it comes out because I can.