Cancelled Quake 4 expansion gets surprise GitHub release after former XCOM 2 developer discovers it on an old hard drive: 'This essentially saved my life'

Typical, isn't it? You wait ages for a surprise launch of additional Quake adventures, and then two come along at once. The original game just received an official new episode as part of the shooter's 30 th anniversary celebrations taking place at this year's QuakeCon. But now Raven Software's Quake…