Games like Into The Inferno
Games like Into The Inferno include Legend of Grimrock, Might & Magic X - Legacy, Legend of Grimrock 2, The Bard's Tale Trilogy, and Wizardry 8. We matched them by the tags players give Into The Inferno on Steam (Party-Based RPG, Dungeon Crawler, First-Person, Grid-Based Movement, and RPG): closest matches first, and among equally close ones the better-known games.

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

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

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

The Bard's Tale Trilogy
Shared: Dungeon Crawler · RPG · Grid-Based Movement

Wizardry 8
Shared: Party-Based RPG · Dungeon Crawler · RPG

Wizardry: The Five Ordeals
Shared: Dungeon Crawler · Party-Based RPG · RPG

Clair Obscur: Expedition 33
Shared: Turn-Based Combat · RPG · Fantasy

Low Magic Age
Shared: Party-Based RPG · Turn-Based Combat · Dungeon Crawler

Darkest Dungeon®
Shared: Dungeon Crawler · Turn-Based Combat · RPG

Legends of Amberland: The Forgotten Crown
Shared: Party-Based RPG · Dungeon Crawler · RPG

Etrian Odyssey HD
Shared: Dungeon Crawler · RPG · Turn-Based Combat

The Bard's Tale IV: Director's Cut - Standard Edition
Shared: Dungeon Crawler · Party-Based RPG · RPG

Fellowship
Shared: Dungeon Crawler · Party-Based RPG · RPG

Lunacid
Shared: Dungeon Crawler · First-Person · RPG

Labyrinth of Refrain: Coven of Dusk
Shared: Dungeon Crawler · RPG · Grid-Based Movement

Potato Flowers in Full Bloom
Shared: Dungeon Crawler · Party-Based RPG · RPG

Path of the Abyss
Shared: Dungeon Crawler · RPG · Party-Based RPG

Wizardry: Labyrinth of Lost Souls
Shared: Dungeon Crawler · RPG · Grid-Based Movement

Wizardry 6: Bane of the Cosmic Forge
Shared: Dungeon Crawler · First-Person · RPG

Divinity: Original Sin - Enhanced Edition
Shared: RPG · Party-Based RPG · Fantasy

Dungeon Siege
Shared: Party-Based RPG · RPG · Fantasy

Wizardry 7: Crusaders of the Dark Savant
Shared: Dungeon Crawler · RPG · Grid-Based Movement

Etrian Odyssey III HD
Shared: Dungeon Crawler · RPG · Party-Based RPG

Touhou Artificial Dream in Arcadia
Shared: Dungeon Crawler · First-Person · Turn-Based Combat