Interesting thought: the three most popular games on Steam[1] (Team Fortress 2, Counter-Strike, and Counter-Strike Source) and the two most popular games on Xbo

Interesting thought: the three most popular games on Steam[1] (Team Fortress 2, Counter-Strike, and Counter-Strike Source) and the two most popular games on Xbox Live[2] (Modern Warfare 2 and Black Ops) are all based on Quake's engine to some extent. [1] http://store.steampowered.com/stats/ http://store.steampowered.com/stats/ [2] http://majornelson.com/2011/08/10/live-activity-for-week-of-august-1st/ http://majornelson.com/2011/08/10/live-activity-for-week-of-...