“We made several changes mostly to the Lua scripts. The Engine itself was changed mostly to handle more complex graphics that Overdose required. We also changed many things regarding multiplayer (special thanks to Blowfish).”
“Epic Games today announced that it has acquired People Can Fly. PCF most recently has been collaborating with Epic on the PC version of Gears of War®.
In addition the two companies are collaborating on a new intellectual property which Epic will be previewing privately to publishers at Games Convention in Leipzig, Germany this week.”