Games like Death Park 2
Games like Death Park 2 include SOMA, Inside the Backrooms, Lethal Company, Outlast, and Alien: Isolation. We matched them by the tags players give Death Park 2 on Steam (Horror, Survival Horror, Difficult, Sci-fi, and Atmospheric): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Atmospheric · Sci-fi

Inside the Backrooms
Shared: Horror · Survival Horror · Puzzle

Lethal Company
Shared: Horror · Survival Horror · Sci-fi

Outlast
Shared: Horror · Survival Horror · Atmospheric

Alien: Isolation
Shared: Horror · Survival Horror · Sci-fi

Poppy Playtime
Shared: Horror · Survival Horror · Puzzle

Darkwood
Shared: Horror · Survival Horror · Adventure

Dead Space
Shared: Horror · Survival Horror · Sci-fi

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · Atmospheric

Little Nightmares
Shared: Horror · Atmospheric · Adventure

Amnesia: The Dark Descent
Shared: Horror · Survival Horror · Atmospheric

ROUTINE
Shared: Sci-fi · Atmospheric · Horror

METRO Last Light Redux
Shared: Horror · Atmospheric · FPS

Five Nights at Freddy's
Shared: Horror · Survival Horror · Difficult

Half-Life 2
Shared: Sci-fi · FPS · Adventure

METRO 2033 Redux
Shared: Horror · Atmospheric · FPS

Metro Exodus
Shared: Horror · FPS · Atmospheric

Little Nightmares II
Shared: Horror · Adventure · Atmospheric

Five Nights at Freddy's: Security Breach
Shared: Horror · Survival Horror · Exploration

SILENT HILL 2
Shared: Horror · Survival Horror · Atmospheric

Resident Evil Village
Shared: Horror · Survival Horror · Atmospheric

Prey
Shared: Sci-fi · Horror · Atmospheric

Black Mesa
Shared: Sci-fi · FPS · Atmospheric

Dead Space (2008)
Shared: Horror · Sci-fi · Survival Horror