Last week's PC launch of Assassin's Creed IV helped Ubisoft's title beat out Call of Duty: Ghosts for top of Steam's top sellers chart.
Digital pre-orders had Black Flag frequenting the list leading up to the Windows release, but this marks the first time its reached number one.
Last week's winner X Rebirth dropped to fifth, behind XCOM: Enemy Within (in third) and Payday 2 (in fourth). Other standard chart toppers like Football Manager 2014 and State of Decay slipped a bit as well, finishing in seventh and ninth respectively.
Bohemia Interactive's ArmA II offerings are also back on the list, thanks to a discount promotion. Here's the list in full
- Assassin's Creed IV Black Flag
- Call of Duty: Ghosts
- XCOM: Enemy Within
- Payday 2
- X Rebirth
- ArmA II: Complete Collection
- Football Manager 2014
- ArmA II: Combined Operations
- State of Decay