Games like Gleamlight
Games like Gleamlight include Hollow Knight, Hollow Knight: Silksong, Ori and the Will of the Wisps, Nine Sols, and Black Myth: Wukong. We matched them by the tags players give Gleamlight on Steam (Action, Indie, Adventure, Dark Fantasy, and Atmospheric): closest matches first, and among equally close ones the better-known games.

Hollow Knight
Shared: Indie · Metroidvania · 2D

Hollow Knight: Silksong
Shared: Indie · Metroidvania · Singleplayer

Ori and the Will of the Wisps
Shared: Action · Adventure · Singleplayer

Nine Sols
Shared: Action · Metroidvania · 2D

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

The Witcher 3: Wild Hunt — Remastered
Shared: Atmospheric · Adventure · Story Rich

SANABI
Shared: Action · Adventure · Story Rich

Hellblade: Senua's Sacrifice
Shared: Atmospheric · Adventure · Singleplayer

Dust: An Elysian Tail
Shared: Action · Indie · Adventure

Blasphemous
Shared: Dark Fantasy · Indie · Metroidvania

Lies of P
Shared: Action · Dark Fantasy · Singleplayer

Red Dead Redemption 2
Shared: Action · Adventure · Story Rich

Dead Cells
Shared: Adventure · Metroidvania · 2D

Tomb Raider Game of the Year
Shared: Action · Adventure · Singleplayer

ENDER LILIES: Quietus of the Knights
Shared: Dark Fantasy · Metroidvania · Singleplayer

God of War
Shared: Action · Adventure · Singleplayer

Skul: The Hero Slayer
Shared: Action · Indie · 2D

Salt and Sanctuary
Shared: Dark Fantasy · Action · 2D

Brothers - A Tale of Two Sons
Shared: Adventure · Indie · Atmospheric

Bastion
Shared: Indie · Action · Singleplayer

Deliver Us The Moon
Shared: Indie · Action · Adventure

GRIS
Shared: Indie · Atmospheric · Adventure

Firewatch
Shared: Adventure · Atmospheric · Story Rich

Rise of the Tomb Raider™
Shared: Action · Adventure · Singleplayer

