The Famine Mode Cheat Code is located in the first half of the Nekravol level. In the room after another Marauder fight, look to the cages of corpses being taken up by a chain pulley system. Drop down ...

The next one is available to collect on Taras Nabad. The Overdrive Cheat Code is found after a small room demon battle. Head up the stairs in the image below and turn left. You'll see a wall you can ...