Steam Autumn Sale continues with deals on Max Payne 3, Sleeping Dogs, Portal 2 and more

Valve's six-day sale on Steam games continues today with a feast of savings on titles in the Max Payne, Portal and Prototype series, as well as soon-to-expire deals on Dead Island and Rage.

Leading today's Steam Autumn Sale deals are games both new and not so new, some of which are discounted up to 75 percent off.

• Arma 2: Combined Operations - $14.99 (50 percent off)
• Max Payne 3 - $14.99 (75 percent off)
• Awesomenauts - $3.39 (66 percent off)
• Portal 2 - $4.99 (75 percent off)
• Sleeping Dogs - $24.99 (50 percent off)
• Prototype 2 - $19.99 (50 percent off)

Steam is also selling previous games in the above series at discounts today. The original Portal is $2.49 and Prototype is $4.99. Both Max Payne and Max Payne 2 are currently selling for $2.49. Additional Arma games are also on sale. In addition to those 48 hour deals, Steam is running flash sales on Dead Island, Train Simulator 2013, Rage, Company of Heroes, Of Orcs and Men and Garry's Mod.

Previously announced Steam sales on Darksiders 2, XCOM: Enemy Unknown, The Walking Dead and more are still ongoing.