Just going to copy and paste from their site:
Altitude is a fun, original multiplayer game with a bunch of cool unlocks and game modes. It's easy to learn and perfect for quick 10 minute sessions when you're busy, or way longer if you're bored. Very fun multiplayer action. Make sure to try ball mode once you've learned the basics.
Free 3 hour demo: Windows
Screenshots: 01 02 03 04 05
This game is a ton of fun to play, small download, runs on just about any system, Windows/Mac users can play on the same servers, perfect for quick 10-20 minute spurts if you're busy, and basically everyone needs to play it. Just download the free demo already, you'll be glad you did.
More info including trailer: altitudegame.com
This game is VERY VERY fun. Every single person I have gotten to play with me on my server I host loves the game. If anyone is interested in playing, please message me on Steam. Tygerwoody is my name.
Also remember, the TUTORIAL sucks. Go through the tutorial just to learn the basics, but don't base your thoughts of the game on it. You need to play real servers to get a feeling for the game.