Games like The Spiral
Games like The Spiral include Mage Arena, Mortal Sin, Crimson Desert Enhanced, Fatekeeper, and PEAK. We matched them by the tags players give The Spiral on Steam (Action, Action Roguelike, Dungeon Crawler, Exploration, and 3D): closest matches first, and among equally close ones the better-known games.

Mage Arena
Shared: Action · Dark Fantasy · Magic

Mortal Sin
Shared: Action Roguelike · Dungeon Crawler · First-Person

Crimson Desert Enhanced
Shared: Action · Exploration · Fantasy

Fatekeeper
Shared: Action · First-Person · Dark Fantasy

PEAK
Shared: Exploration · First-Person · 3D

Gothic 1 Remake
Shared: Action · Exploration · Dark Fantasy

Hades
Shared: Action Roguelike · Action · Dungeon Crawler

Content Warning
Shared: Action Roguelike · Exploration · Action

Curse of the Dead Gods
Shared: Action Roguelike · Action · Dark Fantasy

Dread Delusion
Shared: Exploration · Dark Fantasy · First-Person

Shape of Dreams
Shared: Action Roguelike · Action · Dungeon Crawler

Black Myth: Wukong
Shared: Action · Dark Fantasy · Combat

Ziggurat
Shared: Action · Action Roguelike · First-Person

Slasher's Keep
Shared: Action Roguelike · Dungeon Crawler · Action

Dark Messiah of Might & Magic
Shared: Action · First-Person · Fantasy

FlyKnight Enhanced Edition
Shared: Dungeon Crawler · First-Person · Fantasy

Dungeons of Blood and Dream
Shared: Action Roguelike · Dungeon Crawler · 3D

Lords of the Fallen
Shared: Action · Exploration · Dark Fantasy

UnderMine
Shared: Action Roguelike · Dungeon Crawler · Action

Wizard of Legend
Shared: Action Roguelike · Dungeon Crawler · Action

Queen's Domain
Shared: Dungeon Crawler · First-Person · Exploration

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Dungeon Crawler · Indie

Delver
Shared: Dungeon Crawler · Action Roguelike · First-Person

The Elder Scrolls IV: Oblivion® Game of the Year Edition (2009)
Shared: Fantasy · First-Person · Exploration