An 88 percent surge in sales put London 2012: The Official Video Game in first place for a second week in the UK games chart.
Sega's London 2012 defended the top spot from Lego Batman 2: DC Super Heroes, which stayed in the number two spot with a 15 percent drop-off in sales. Mario & Sonic London 2012 Olympic Games, the other tie-in title from Sega, held onto third place with a 42 percent boost in sales during the first week of the Olympic competition.
Further down the chart, Batman: Arkham Asylum continued to enjoy a resurgence with a 21 percent sales boost up to number four, while retailer promotions bumped Elder Scrolls V: Skyrim from eight to five.
A new entry in the UK chart, Risen 2: Dark Waters sailed into the UK charts at number 14, the buccaneering RPG sequel beating its predecessor's debut at number 29 back in October 2009.
The UK All-Formats chart for the week ending August 4 2012:
1. London 2012: The Official Video Game
2. Lego Batman 2: DC Super Heroes
3. Mario & Sonic London 2012 Olympic Games
4. Batman: Arkham City
5. The Elder Scrolls V: Skyrim
6. Assassin's Creed: Revelations
7. The Amazing Spider-Man
8. Battlefield 3
9. Tom Clancy's Ghost Recon: Future Soldier
10. Call of Duty: Modern Warfare 3
Leisure software charts compiled by Chart Track.