Games like The Remainer
Games like The Remainer include Look Outside, Fallout 4, SIGNALIS, DREDGE, and SOMA. We matched them by the tags players give The Remainer on Steam (Lovecraftian, RPG, Post-apocalyptic, Survival Horror, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Look Outside
Shared: RPG · Lovecraftian · Survival Horror

Fallout 4
Shared: Post-apocalyptic · RPG · Adventure

SIGNALIS
Shared: Survival Horror · Psychological Horror · Lovecraftian

DREDGE
Shared: Lovecraftian · Adventure · Exploration

SOMA
Shared: Psychological Horror · Sci-fi · Survival Horror

Fallout: New Vegas
Shared: RPG · Post-apocalyptic · Adventure

WORLD OF HORROR
Shared: Lovecraftian · Survival Horror · Psychological Horror

Darkwood
Shared: Survival Horror · RPG · Psychological Horror

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

OMORI
Shared: Psychological Horror · RPG · Pixel Graphics

LISA: The Painful
Shared: RPG · Post-apocalyptic · Psychological Horror

Fallout 3
Shared: RPG · Post-apocalyptic · Sci-fi

Fear & Hunger 2: Termina
Shared: Survival Horror · RPG · Lovecraftian

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Post-apocalyptic · RPG · Exploration

Inside the Backrooms
Shared: Survival Horror · Psychological Horror · Adventure

Pacific Drive
Shared: Survival Horror · Sci-fi · Post-apocalyptic

Pacify
Shared: Survival Horror · Psychological Horror · Sci-fi

Amnesia: The Dark Descent
Shared: Survival Horror · Psychological Horror · Lovecraftian

ELEX
Shared: RPG · Post-apocalyptic · Sci-fi

Escape the Backrooms
Shared: Survival Horror · Psychological Horror · Adventure

Tales of the Black Forest
Shared: RPG · Pixel Graphics · Adventure

S.T.A.L.K.E.R.: Shadow of Chornobyl - Enhanced Edition
Shared: RPG · Adventure · Post-apocalyptic

Still Wakes the Deep
Shared: Lovecraftian · Psychological Horror · Adventure

Cyberpunk 2077
Shared: RPG · Sci-fi · Futuristic