One of the best RTS games is now cheap on Green Man Gaming. Use the voucher to get extra 20% off! Works with Steam of course :) OCTOBE-R20GMG-OFFERX
Mafia II Complete Pack is now on sale on GMG. The game goes for a little more than $9 and is Steam redeemable. I always liked the game even though it was not entirely open world like Grand Theft Auto games. Anyway if you like mobster games you have to play this. Use the coupon: GMG20-GGN5D-FC3NA.