Games like After the Flood
Games like After the Flood include Firewatch, SOMA, What Remains of Edith Finch, Poppy Playtime, and Outlast. We matched them by the tags players give After the Flood on Steam (Horror, Exploration, Survival Horror, Atmospheric, and Dark): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Atmospheric · Exploration · First-Person

SOMA
Shared: Horror · Atmospheric · Survival Horror

What Remains of Edith Finch
Shared: Atmospheric · Exploration · First-Person

Poppy Playtime
Shared: Horror · Survival Horror · Singleplayer

Outlast
Shared: Horror · Survival Horror · Atmospheric

Amnesia: A Machine For Pigs
Shared: Horror · Atmospheric · Exploration

The Forest
Shared: Horror · Survival Horror · Exploration

Resident Evil Village
Shared: Horror · Survival Horror · First-Person

Outer Wilds
Shared: Exploration · Atmospheric · Mystery

Visage
Shared: Horror · Survival Horror · Dark

Layers of Fear (2016)
Shared: Horror · Atmospheric · First-Person

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

Outlast 2
Shared: Horror · Survival Horror · First-Person

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · First-Person

Darkwood
Shared: Horror · Survival Horror · Dark

Metro Exodus
Shared: Horror · Atmospheric · Singleplayer

Lethal Company
Shared: Horror · Survival Horror · First-Person

Bendy and the Ink Machine
Shared: Horror · First-Person · Survival Horror

Subnautica 2
Shared: Horror · Exploration · Survival Horror

Fallout 4
Shared: Exploration · Singleplayer · Atmospheric

Subnautica
Shared: Horror · Exploration · Singleplayer

Slender: The Arrival
Shared: Horror · Survival Horror · First-Person

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

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