Necrophobia (MrNyxx)

Necrophobia is a Source SDK mod developed by Mr. Nyxx. The map featured in the game is made by Ethosaur (https://steamcommunity.com/id/ethosaur).

Necrophobia is a singleplayer game. It uses ambiance, lighting and sounds, unexpected events and much more, instead of cheap face jumpscares to give you quite a chill. The game features about 15-20 minutes of gameplay per chapter or more depending on how much you observe the areas or blast right trough them. The game isn't only about horror, however. It also features a bit of puzzle mechanics.