Unlock Features
Complete the game to be able to activate the following features at the 'Extra's' menu.
Unlock Concept Arts:
Complete the game once in any difficulty
Unlock Development Timeline:
Complete the game once in any difficulty
Unlock Duke Sound Board:
Complete the game once in any difficulty
Unlock Movies
Complete the game once in any difficulty
Unlock Screenshots:
Complete the game once in any difficulty.
Unlock Triptych Office:
Complete the game once in any difficulty
Unlock Big Head Mode in Extra Game Settings:
Use early preorder download code.
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