Games like THE DEEPEST CASTLE
Games like THE DEEPEST CASTLE include Path of Exile 2, Wolcen: Lords of Mayhem, Grim Dawn, Black Myth: Wukong, and DARK SOULS™: REMASTERED. We matched them by the tags players give THE DEEPEST CASTLE on Steam (Action, Adventure, Hack and Slash, Dungeon Crawler, and Dark Fantasy): closest matches first, and among equally close ones the better-known games.

Path of Exile 2
Shared: Hack and Slash · Action · Dark Fantasy

Wolcen: Lords of Mayhem
Shared: Hack and Slash · Action · Adventure

Grim Dawn
Shared: Hack and Slash · Dark Fantasy · Dungeon Crawler

Black Myth: Wukong
Shared: Action · Souls-like · Dark Fantasy

DARK SOULS™: REMASTERED
Shared: Action · Dark Fantasy · Souls-like

Mortal Shell II
Shared: Dark Fantasy · Action · Souls-like

Blasphemous
Shared: Dark Fantasy · Pixel Graphics · Souls-like

DARK SOULS™ II: Scholar of the First Sin
Shared: Action · Dark Fantasy · Souls-like

Deaths Door
Shared: Action · Adventure · Dark Fantasy

Exanima
Shared: Dungeon Crawler · Dark Fantasy · Adventure

Dead Cells
Shared: Adventure · Hack and Slash · Pixel Graphics

Darksiders III
Shared: Action · Hack and Slash · Adventure

Lies of P
Shared: Action · Dark Fantasy · Souls-like

Mortal Shell
Shared: Action · Dark Fantasy · Souls-like

Middle-earth: Shadow of War
Shared: Action · Adventure · Hack and Slash

Minecraft Dungeons
Shared: Adventure · Hack and Slash · Dungeon Crawler

Wo Long: Fallen Dynasty
Shared: Action · Hack and Slash · Dark Fantasy

Warhammer 40,000: Inquisitor - Martyr
Shared: Hack and Slash · Action · Adventure

God of War
Shared: Action · Adventure · Hack and Slash

Last Epoch
Shared: Hack and Slash · Action · Adventure

Lords Of The Fallen™ 2014
Shared: Dark Fantasy · Action · Souls-like

Bright Memory
Shared: Hack and Slash · Action · Adventure

Path of Exile
Shared: Hack and Slash · Dark Fantasy · Dungeon Crawler

Hammerwatch
Shared: Dungeon Crawler · Action · Adventure