Audiosurf 2 [official site], the game which allows you to 'ride' your music on a neon futuristic racetrack, has left Steam Early Access today. It brings an updated Audiosurf experience, with new official game modes and skins alongside the 500+ already available on Steam Workshop. Not only that, but according to the developer the "UI is good now", which is always a plus.
The game uses music tracks on your hard drive to procedurally generate each level. While it sadly doesn't work with Spotify, you can play levels streamed from SoundCloud, including the Songs of the Day. Which basically means unlimited levels plus a fun way to discover new music. Other improvements over the original game include live leaderboards, prettier visuals and "additional layers of strategy tied to the song's biggest moments."
The first game was fantastic fun, so any improvement on that can only be a good thing.
At launch it's £10.19 on Steam, or $14.99 (£9.70-ish) from a Humble Widget which gives you a Steam key and gives developer Dylan Fitterer a bigger share. Over on Steam you'll find a free demo which will allow you to play any three songs of your choice. After that, you'll be restricted to the Song of the Day, which you can continue to play indefinitely.
Check out this skin which makes songs look like moody city streets: