As expected, Valve's puzzle-shooter sequel Portal 2 is on top of Steam's top 10 best selling PC game sales list (Steam is of course owned by Valve). The Potato Sack bundle of 13 indie games, all involved in a massive Portal 2 alternate reality game, is in second place this week. A bundle with Portal 2 and The Potato Sack finds itself in sixth place. This week's list is also full of games that had deep one or two day price cuts.

The full top 10 list is as follows:
1. Portal 2 - Valve
2. The Potato Sack - Various indie games
3. Borderlands Game of the Year Edition - Gearbox Software/2K Games
4. Magicka Complete Pack - Arrowhead Game Studios/Paradox Interactive
5. BioShock 2 - 2K Marin/2K Games
6. Portal 2 + The Potato Sack- Valve/various indie games
7. Crysis 2 - Crytek/EA
8. Civilization V - Firaxis/2K Games
9. Splinter Cell Collector Pack - Ubisoft.
10.Dungeon Siege III - Obsidian Entertainment/Square Enix