Carmack, Romero and two other guys were making $60K a month from Commander Keen in its shareware format. That's after Apogee's 60% cut. [0] http://en.wikipedia

Carmack, Romero and two other guys were making $60K a month from Commander Keen in its shareware format. That's after Apogee's 60% cut. [0] http://en.wikipedia.org/wiki/Commander_Keen http://en.wikipedia.org/wiki/Commander_Keen [1] http://www.amazon.com/Masters-Doom-Created-Transformed-Culture/dp/0812972155 http://www.amazon.com/Masters-Doom-Created-Transformed-Cultu... - highly recommended, really good read