Serious Sam 1, 2 and 3 are being offered for free until tomorrow. 10,000 Steam keys available per game.
The promotion is divided into 5 days:
21st Sep: 25 ARP for free
22nd Sep: A 2x booster for 48h
23rd Sep: Serious Sam HD: The First Encounter
24th Sep: Serious Sam 2
25th Sep: Serious Sam 3
Instructions:
1) Log in (or create a new Alienaware account) then change the region by going to this URL: na.alienwarearena.com/
2) Then click on the little bomb icon so that the banner with the information opens
thanks