Steam Daily Deal: Portal 2

Most gamers will already have Portal and a good percentage will have Portal 2, but if you’re one of the few that haven’t got Portal 2, you can save 75% until 6pm (GMT) Jan 22nd on Steam.

Perpetual Testing Initiative
The “Perpetual Testing Initiative” has just been expanded to allow users to design co-op puzzles in Portal 2! This update also introduces a “Quick Play” feature, giving you quick access to the top-rated maps in various categories.

Portal 2 – £3.74
Portal 2 – Two Pack – £6.24

If you have a buddy who also doesn’t have Portal 2, put your money together and save a £1.24 by buying the Two Pack!
http://store.steampowered.com/app/620/