Do you hear that faint wailing in the background? That's the sound of a thousand bank accounts going "noooo!" at the appearance of the Autumn Steam Sale. Thankfully for our wallets, it only lasts until Sunday, with dozens of new deals every day. Consider it a warm up for the monolithic Steam Christmas sale next month.

The sale kicked off yesterday, but you've still got six hours to grab some of the fantastic day one deals. The marvellous Orcs Must Die is just £2.99 / $3.74 (we gave it a score of 90 in our Orcs Must Die review). Portal 2 is selling for just £6.79 / $10.19. If you haven't played Mass Effect yet, the first game is £2.49 / $4.99, and Mass Effect 2 is 75% off at £4.99 / $12.49.

If you're more partial to an arcade explodathon starring Gordon Freeman, Renegade Ops is £4.99 / $7.49 (or you can grab a four pack for £9.99 / $14.99). All of Dejobaan's games are also on sale as well, including AaaaaAAaaaAAAaaAAAAaAAAAA!!! for the Awesome.

These games are also on sale for the next few hours:

Call of Duty: Black Ops
Duke Nukem Forever
Test Drive Unlimited 2
Risen
Sam & Max series
Men of War series
Oddworld series

 
These deals will switch out in 5 hours and 42 minutes from the time of writing. Keep an eye on the Steam front page for the next set of deals then.