Games like The Prospector Odyssey
Games like The Prospector Odyssey include Amnesia: The Bunker, Five Nights at Freddy's: Security Breach, The Forest, Resident Evil 4 (2005), and Outlast. We matched them by the tags players give The Prospector Odyssey on Steam (Survival Horror, Singleplayer, Atmospheric, Inventory Management, and Exploration): closest matches first, and among equally close ones the better-known games.

Amnesia: The Bunker
Shared: Survival Horror · Atmospheric · Horror

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

The Forest
Shared: Horror · Survival Horror · Crafting

Resident Evil 4 (2005)
Shared: Survival Horror · Inventory Management · Singleplayer

Outlast
Shared: Survival Horror · Atmospheric · Horror

Sons Of The Forest
Shared: Survival Horror · Horror · Exploration

Subnautica
Shared: Horror · Singleplayer · Exploration

Little Nightmares
Shared: Atmospheric · Singleplayer · Horror

Stray
Shared: Atmospheric · Singleplayer · Exploration

DREDGE
Shared: Exploration · Inventory Management · Atmospheric

SOMA
Shared: Atmospheric · Horror · Survival Horror

Alien: Isolation
Shared: Survival Horror · Horror · Atmospheric

Lethal Company
Shared: Survival Horror · Horror · Exploration

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

Prey
Shared: Singleplayer · Atmospheric · Horror

Dead Space
Shared: Survival Horror · Horror · Singleplayer

Poppy Playtime
Shared: Singleplayer · Survival Horror · Horror

The Long Dark
Shared: Atmospheric · Singleplayer · Exploration

SILENT HILL 2
Shared: Survival Horror · Atmospheric · Horror

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

Resident Evil 2
Shared: Survival Horror · Singleplayer · Horror

Escape the Backrooms
Shared: Survival Horror · Horror · Exploration

Little Nightmares II
Shared: Singleplayer · Horror · Atmospheric

Darkwood
Shared: Survival Horror · Horror · Atmospheric