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Title Screen


Developer: Dylan Fitterer
Platform: Windows
Released internationally: February 15, 2008

DevMessageIcon.png This game has a hidden developer message.
DevTextIcon.png This game has hidden development-related text.
MinigameIcon.png This game has unused modes / minigames.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.

Audiosurf is a rhythm game where you ride a spaceship across a road collecting colored blocks. Unlike other music games, the music here is actually music files on your PC, meaning every single song in existence is an Audiosurf song, even songs that came out after the game's release.

That's a lot of songs.

Unused Music

Present in the laddermusic folder of the game's directory.

A 44-second flute song, possibly made for testing the track generator.

A Portal remix called "The Device Has Been Modified", credited under "Victims of Science". The song itself in-game appropriately uses the [as-portal] tag. Present in the comments section of the file's properties is a developer message:

Thanks for Portal Valve, you are awesome. Wow I didn't know this would have such a warm reception.
I went back and put the effort into it that I should have the first time.

The song was included in an August 12, 2011 update as part of a Valve promotional ARG. When the player booted up the game, the first song they chose would be replaced by this one instead. This was disabled in a later update, though the song stuck around in the files afterward.

(Source: Valve ARG Wiki - Audiosurf)

Unused Sounds

Each of the four sound effect themes contain three sound effects that go unused in the final game. "matchformedOLD.wav" is a unique sound effect, likely from before different sound effects were added for different sized block matches. "overfill_safehitOLD.wav" is the Windows Ta-Da! sound effect; it's unknown where this would have gone. "tilefallOLD.wav" is a Windows "ping" sound effect that is used in the game, but in a duplicate file.




An outtake of a line from one of the tutorials can be found at "rush down.mp3".

Unused Game Modes

Options.ini contains an option for a touchscreen mode that's normally set to 0; changing it to 1 will do nothing to the game.

Unused Text

QuickPicks.cgr contains a list of file names for songs likely used for testing. These are stored before the player's recent songs.

04 - Map Of The Problematique.mp3
04 10,000 Days (Wings, Pt. 2).wma
04 10,000 Days (Wings, Pt. 2).wma
Little Spitfire - Silly Girl.mp3
Little Spitfire - Say Hello.mp3
Little Spitfire - If I Look I See You.mp3
Little Spitfire - Drama Queen.mp3
Jason Sean - Ocean of Memories.mp3
Jason Sean - Infinite Journey.mp3
Jason Sean - Aurelia's Return.mp3
07 Just Like You Imagined.mp3
09 Pilgrimage.mp3
10 No, You Don't.mp3
The Giant.mp3
Yeah Yeah Yeah.mp3
Zetan Spore - Stratosphere.mp3
Zetan Spore - Burn Up.mp3
10 - The Come Down.mp3
10. January2.mp3
08. Catch Them All2.mp3
06. Some Racing, Some Stopping2.mp3
02. Cherry Tulips2.mp3
01. Get Yer Head Around It2.mp3