Call Of Cthulhu: Dark Corners Of The Earth cheats and cheat codes for PC

Unlock Hardened Detective mode
Finish the game on the Private Investigator difficulty level 
with any Mythos rank

Unlock Mythos Master mode
Finish the game on the Hardened Detective difficulty level 
with any Mythos rank

Unlock Background art renders
Finish the game on the Private Investigator difficulty level 
with any Mythos rank

Unlock Character art renders
Finish the game on the Private Investigator difficulty level 
with any Mythos rank

Unlock Concept artwork
Finish the game on the Private Investigator difficulty level 
with any Mythos rank

Unlock Craig Mullins gallery
Finish the game on the Hardened Detective difficulty level 
with any Mythos rank

Safe combinations:
Note: Jack Walters needs to find the clue before the open the safe.

Opening the safes:
1st number: start rotating the dial clockwise
2nd number: rotate the dial anti-clockwise
3rd number: rotate the dial clockwise again
4th number: rotate the dial anti-clockwise again

Variety Store safe: 
Clue is in Waite residence attic. 
The safe combination is 2 - 6 - 1 - 2. 

Church Basement safe: 
Clue is to use postcard on number tablet. 
The safe combination is 3 - 1 - 5 - 7. 

Precinct safe: 
Clue is in cell next to Brian's cell. 
The safe combination is 1 - 8 - 4 - 6. 

Masonic Hall safe: 
Clue is in second floor study. 
The safe combination is 1 - 8 - 7 - 8.