We reckon you're almost certainly planning the quickest route to the shops this morning, but before you make any decisions cast your eyes on the deals we've rounded up below - your wallet with thank you for it.
First up is Amazon, which is offering the console versions of Portal 2 for £32.91 and the PC version for £24.91. It's probably worth mentioning again that the PlayStation 3 version comes with a free steam download code for the game.
Play.com is selling the Xbox 360 version for £37.99 and the PC version for £26.99. It has the PS3 edition of Portal 2 slightly higher than its 360 counterpart at £39.99.
HMV is sticking to RRP and disappointingly has Portal 2 listed for £39.99 on consoles and PC for £29.99.
GAME faithfuls can pick up Portal 2 online for £32.99 on consoles and £27.99 on PC. Obviously you can use any points you have on your store card and earn a few more if you have one.
If you're going the digital download route Steam has Portal 2 priced at £29.99.