Though co op play is currently 'being considered' for the game, according to the developers on Hidden Deep's Steam page, the trailer below shows that players can seemingly friendly-fire their companions into oblivion or set deadly traps for the unsuspecting. Right now, Hidden Deep is single-player only, with players leading their team through the facility, avoiding traps and monsters, coming up with creative ways to traverse each area. Leaning hard into classic horror tropes of claustrophobia, body horror, and savage cryptozoological organisms that might just be aliens, Hidden Deep throws into the mixture a good measure of subterfuge and backstabbing, too. The comparisons are apt in the 3:14 announcement trailer for Hidden Deep, which sees a group of up to four players venture to a deep-water installation to uncover the fate of a missing crew. Cogwheel Games and Daedalic Entertainment are playing to those fears with Hidden Deep, an upcoming 2D horror game that's described as ' The Thing meets Barotrauma,' the latter of which is another thalassaphobia nightmare published by Daedalic back in 2019.