Portal 2 drops to $30 on Steam, bundled with Portal 1 for $35

Portal 2 logo
You'd think universal praise would be good enough to sell Portal 2, but apparently it's just not enough for Valve. The company has dropped the PC and Mac versions of the humorous puzzler down to a wallet-friendly $30. You can even pack in the original Portal – Joystiq's favorite game of 2007 – for another five bucks.

Don't just buy it for yourself. Buy it for science.

This article was originally published on Joystiq.