Valve has revealed the past week's top sellers on Steam.
Football Manager 2013 makes a significant jump from last week's fifth place finish to grab the top spot.
Left 4 Dead 2 glided to the runner-up position thanks to a discount promotion falling within the period.
Though XCOM was toppled for the first time in a few weeks, it still ended up in third ahead of indie FPS/RTS hybrid Natural Selection 2.
- Football Manager 2013
- Left 4 Dead 2
- XCOM: Enemy Unknown
- Natural Selection 2
- Counter-Strike: Global Offensive
- Chivalry: Medieval Warfare
- Borderlands 2
- The Walking Dead
- Dishonored and Borderlands 2 Season Pass
- Dead Island: Game of the Year Edition and ArmA II: Combined Operations