Today is officially Black Friday but it's also the third day in the big Steam holiday sales event. Valve has now switched up the games that have price cuts during their Thanksgiving-related sale. For 23 more hours you can purchase and download their just released zombie shooter sequel Left 4 Dead 2 for just $37.49, a 25 percent discount from its normal price.

Here are the other games with price cuts that will dissapear tomorrow morning. The LucasArts and THQ $49.99 game bundle deals are still in effect until Monday:

Cities XL - $24.99
Dead Space - $14.99
Mini Ninjas - $14.99
Star Wars: Knights of the Old Republic - $2.49
Madballs in Babo:Invasion - $2
Majesty 2 - $9.99