I came across this picture online and was curious how all these games have been derived from Quake? Is there some sort of public license-free source code of quake that we can use to develop from? If so does anyone know if its even worth it and if so where you could acquire this source? Not to mention, if they are all available, which would be best to develop from? Quake 1,2,or 3 src?
Edited by markrodgers11, 28 May 2013 - 11:19 AM.