Pretty sad 2 cod games on top but meh
http://ve3d.ign.com/articles/news/58910/Steam-Rakes-in-Nearly-1-Billion-in-2010
According to Forecasting and Analyzing Digital Entertainment (FADE), a market research firm that produces monthly and annual reports for Steam, Xbox Live Arcade, Playstation Network, WiiWare & Virtual Console, and mobile markets, Valve's PC distribution platform got an estimated revenue of US$970 million in 2010.
Director of Research & Analysis, Benjamin Schlichter, stated, "Steam's growth has been remarkable during the year. Over 180 titles were estimated reaching over $1 million USD in revenue for the year, painting a very healthy market for developers and publishers, with more room for growth in the future."
Here are the top selling games on Steam for 2010.
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://ve3d.ign.com/articles/news/58910/Steam-Rakes-in-Nearly-1-Billion-in-2010