第三方机构分析去年STEAM游戏销售总收入$970 million USD
其中12月单月销售收入$213 million USD

以下是2010年STEAM年度游戏销售额排名

1. Call of Duty: Black Ops (Activision) - $98.2 Million USD
2. Call of Duty: Modern Warfare 2 (Activision) - $39.4 Million USD
3. Left 4 Dead 2 (Valve) - $36.0 Million USD
4. Battlefield: Bad Company 2 (Electronic Arts) - $25.4 Million USD
5. Sid Meier’s Civilization V (2K Games) - $21.9 Million USD
6. Portal (Valve) - $20.0 Million USD
7. Fallout: New Vegas (Bethesda Softworks) - $17.0 Million USD
8. Metro 2033 (THQ) - $13.4 Million USD
9. Mafia II (2K Games) - $11.9 Million USD
10. Warhammer 40,000: Dawn of War II: Chaos Rising (THQ) - $10.8 Million USD

http://www.guru3d.com/news/-010-revenue-roughly-1-billion/