i've searched online and no one is entirely sure (i.e during a certain quest or difficulty) but i just can't get it to spawn!
for those that don't know development hell is a secret dungeon that spawns in the cemetery of the forsaken in act 1 where all the enemies are named after people who worked on D3 and the guy at the end is jay Wilson a purple mob and grants a feat of strength for killing
I'm on nightmare and have killed leoric and constantly gone on and off for an hour and a half now trying to get it to appear but no luck
is there something I'm missing???