Whatsoever. There's a very light sanity mechanic where stuff happens to the screen or the audio, like you everything turns green or you hear whispers (this is much more underwhelming than it sounds) These have zero effect on the character as far as I am aware, and pretty much only acts as a a tiny bit of a visual or audial blockade for the player. The supplies management is pretty unreasonable. You will most often find yourself dead with an abundance of supplies, but you lacked the one thing that would stop the character from losing health, sometimes the only way to stop it is with a medical kit, which is a rare item, and this happens if the character gets too cold. Which happens a lot. It's not that it's hard, it's just so damn tedious and there is no way to sacrifice one bar to save the other, an option that better survival games have. Accidentally got a cut while searching? Sorry no bandages, you're dead. Fucking hell. Every map is litterally exactly the same, except the buildings are switched around and in different shapes. The only thing that's somewhat interesting about the game is the enemies, but so many of them are so similar, it took forever to find an enemy that wasn't a floating blob. Bad. Bad game.
