While playing, hold [CTRL] + [SHIFT] + [O] + [E] and then press [H] to activate Developer mode. You can then press any of the following cheat keys.
Code Effect 8 Add 1000 EXP 6 Give Explosives 5 Give Gas Mask 9 Give Morphine 2 Give Next Handgun 1 Give Next Rifle G God Mode 7 Intended Upgrade Attributes N Maximum Ammo for Current Weapon M Maximum Armor X Toggle Fly Mode V Toggle Visibility
Contributed By: Crimson_Dawn_80.
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