I've got Steam because it was an auto-download thing when I installed Audiosurf, which uses Steam to run it or something. Love that game - the tagline is "Surf your music", and that's exactly what you do - pick a track, any track (.mp3, .wma, and a few other formats work fine), and the game turns it into a...well, a track. Umm, that is, a racetrack-looking-type thingy, which you ride along on a spaceship-type-thingy. The course of the track is determined by the music. So if you load in a slow-paced tune with only low, slow instruments playing, you'll get a slow ride uphill for the track. If you load in a fast song with loads of rapid drumbeats, you'll get a really fast downhill track with tons of blocks all over the place. Blocks are the things you collect in your spaceship thingy, which come along in time to the music. Match blocks of the same colour to score points, or play in Mono mode where all the blocks ae the same colour and you just have to hit as many as you can and avoid the grey blocks. I've surfed pretty much my entire music collection (over 30 hours of music) on there, and always surf any new tracks I get. Maybe if some people on here start playing it, I can maybe start up a friends list and start comparing my scores to people I actually know (as long as they surf the same tracks as me...hmm that could be a problem, lol).
Oh, and the game only costs about a fiver - bloody worth it, I reckon

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Ooh look, I'm almost spamming, here, aren't I? Whoops, lol.
But it is a blody fun game

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