Antichamber on sale for $9.99 on Steam

Antichamber, Alexander Bruce's first-person puzzle game, is on sale for 50 percent off on Steam, according to the game's listing on Valve's digital distribution service.

You can head over to Steam (where the game recently surpassed 100,000 in sales) to pick up the $19.99 Windows PC game for $9.99. The offer ends Friday, April 18, according to the Steam listing.

For more on what Bruce calls a "mind-bending psychological exploration game," be sure to check out Polygon's Antichamber review.

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