whats the 4 digit passcode?

[Badger]

i got this 4 digit passcode prompt trying to unlock something but i have no clue what the code is or where to find it?

if its not something mysterious worth exploring please let me know the code :)

[alexshiro]

it's the old reference, isn't it? I don't remember exactly, but I think it's in aguide somewhere.

Edit: 0451 was the one I was thinking, apparently some others work too

https://steamcommunity.com/sharedfiles/filedetails/?id=432891204

[wizardovoz]

I got 5738 from hooded figure too