Games like Inferno - Beyond the 7th Circle
Games like Inferno - Beyond the 7th Circle include Outlast, Fallout: New Vegas, Fallout 4, The Forest, and Outlast 2. We matched them by the tags players give Inferno - Beyond the 7th Circle on Steam (RPG, Dungeon Crawler, Grid-Based Movement, Gore, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Outlast
Shared: Horror · Gore · First-Person

Fallout: New Vegas
Shared: RPG · Singleplayer · First-Person

Fallout 4
Shared: RPG · Singleplayer · Exploration

The Forest
Shared: Survival · Horror · First-Person

Outlast 2
Shared: Gore · Horror · Singleplayer

Darkest Dungeon®
Shared: Dungeon Crawler · RPG · Singleplayer

Subnautica
Shared: Survival · Horror · Singleplayer

Lunacid
Shared: Dungeon Crawler · RPG · First-Person

Resident Evil 7 Biohazard
Shared: Singleplayer · Horror · Gore

Legend of Grimrock 2
Shared: RPG · Dungeon Crawler · Grid-Based Movement

Might & Magic X - Legacy
Shared: RPG · Dungeon Crawler · Singleplayer

Dying Light
Shared: Horror · Gore · Survival

Legend of Grimrock
Shared: RPG · Dungeon Crawler · Grid-Based Movement

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Survival · RPG · Singleplayer

Resident Evil Village
Shared: Singleplayer · Horror · Gore

Poppy Playtime
Shared: Singleplayer · Horror · First-Person

Vampire: The Masquerade® - Bloodlines™ 2
Shared: Gore · RPG · Singleplayer

The Elder Scrolls IV: Oblivion Remastered
Shared: RPG · Singleplayer · First-Person

Tainted Grail: The Fall of Avalon
Shared: RPG · Singleplayer · First-Person

Subnautica: Below Zero
Shared: Survival · Singleplayer · Horror

Fallout 76
Shared: RPG · Survival · Singleplayer

Grim Dawn
Shared: RPG · Dungeon Crawler · Singleplayer

Starfield
Shared: RPG · Singleplayer · Exploration

Cyberpunk 2077
Shared: RPG · Singleplayer · First-Person