Deus Ex: Human Revolution has claimed another chart scalp this morning - in the official weekly PC boxed sales list.
The action RPG, developed by Eidos Montreal, jumps ahead of The Sims 3: Generations and The Sims 3, which both drop one place to No.2 and No.3 respectively.
Valve's Portal 2 is the Top 10's highest climber, up three spots to No.8.
Deus Ex also this morning took top spot in the official All Formats UK games chart.
The full UKIE/GfK-ChartTrack Top 20 boxed PC game sales for week ending August 27:
1) DEUS EX: HUMAN REVOLUTION (Square Enix)
2) THE SIMS 3: GENERATIONS (EA)
3) THE SIMS 3 (EA)
4) FOOTBALL MANAGER 2011 (Sega)
5) THE SIMS: MEDIEVAL (EA)
6) THE SIMS 3: LATE NIGHT (EA)
7) WORLD OF WARCRAFT: CATACLYSM (Blizzard)
8) PORTAL 2 (EA)
9) STARCRAFT II: WINGS OF LIBERTY (Blizzard)
10) THE WITCHER 2: ASSASSINS OF KINGS (Namco)
11) CIVILIZATION V (2K)
12) SHOGUN 2: TOTAL WAR (Sega)
13) THE SIMS 2 (EA)
14) TROPICO 4 (Kalypso)
15) CALL OF DUTY: BLACK OPS (Activision)
16) DAWN OF WAR II: RETRIBUTION (THQ)
17) FABLE III (Microsoft)
18) DUKE NUKEM FOREVER (2K)
19) HOMEFRONT (THQ)
20) EMPIRE & NAPOLEON TOTAL WAR COLLECTION (Sega)