There are three Sons of the Forest keycard locations, each of which opens an important door in the twisting, interlocking cave systems beneath your feet. You might be surprised to discover that the hidden keycard locations are more obvious to you than you’d imagine, but that doesn’t mean you aren’t going to run up against some mutant-shaped trouble on your way.
While the natural terrain surrounding you in Endnight’s horror game might fool you, hidden away in the dark and terrifying caves are various man-made and industrial bunkers, filled with corpses, bones, resources, and all manner of Sons of the Forest mutants. While you can stay alive and have a perfectly nice time just foraging for berries and drinking water in the survival game, you need to find other items, including the all-important keycards, in order to complete your story. Here’s where to find – and, more importantly, how to get – all three Sons of the Forest keycards.