Games like Ergastulum: Dungeon Nightmares III
Games like Ergastulum: Dungeon Nightmares III include Lethal Company, Dying Light, The Forest, METRO 2033 Redux, and Escape the Backrooms. We matched them by the tags players give Ergastulum: Dungeon Nightmares III on Steam (Horror, FPS, Survival Horror, Dungeon Crawler, and Roguelite): closest matches first, and among equally close ones the better-known games.

Lethal Company
Shared: Horror · Survival Horror · Exploration

Dying Light
Shared: Horror · Survival Horror · FPS

The Forest
Shared: Horror · Survival Horror · Survival

METRO 2033 Redux
Shared: FPS · Horror · Survival Horror

Escape the Backrooms
Shared: Horror · Survival Horror · Exploration

Outlast
Shared: Horror · Survival Horror · First-Person

Metro Exodus
Shared: FPS · Horror · Survival

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

Resident Evil Village
Shared: Horror · Survival Horror · FPS

METRO Last Light Redux
Shared: FPS · Horror · Action

Dead by Daylight
Shared: Horror · Survival Horror · Survival

Subnautica 2
Shared: Horror · Survival Horror · Exploration

Hello Neighbor
Shared: Horror · Survival Horror · Stealth

Resident Evil Requiem
Shared: Horror · Survival Horror · FPS

The Outlast Trials
Shared: Horror · Survival Horror · Stealth

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

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

Inside the Backrooms
Shared: Horror · Survival Horror · FPS

Alien: Isolation
Shared: Horror · Survival Horror · Stealth

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

Poppy Playtime
Shared: Horror · Survival Horror · First-Person

Left 4 Dead 2
Shared: FPS · Horror · Survival

Darkwood
Shared: Horror · Survival Horror · Exploration

The Beast Inside
Shared: Horror · Survival Horror · First-Person