Games like The Lost Key
Games like The Lost Key include Hollow Knight, Nine Sols, Well Dweller, Hollow Knight: Silksong, and Blasphemous 2. We matched them by the tags players give The Lost Key on Steam (Action, Adventure, Action-Adventure, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.
Hollow Knight
Shared: Platformer · Metroidvania · Souls-like
Nine Sols
Shared: Action · Metroidvania · Platformer
Well Dweller
Shared: Action-Adventure · Action · Metroidvania
Hollow Knight: Silksong
Shared: Metroidvania · Platformer · Souls-like
Blasphemous 2
Shared: Adventure · Metroidvania · 2D Platformer
Dead Cells
Shared: Adventure · Metroidvania · 2D
Ori and the Will of the Wisps
Shared: Platformer · Action · Metroidvania
SANABI
Shared: Action · Adventure · 2D Platformer
Blasphemous
Shared: Metroidvania · Souls-like · Action
Salt and Sanctuary
Shared: Metroidvania · Action · Souls-like
Anomaly Agent
Shared: 2D Platformer · Platformer · Side Scroller
Black Myth: Wukong
Shared: Action · Souls-like · Action-Adventure
F.I.S.T.: Forged In Shadow Torch
Shared: Action · Platformer · Adventure
Dust: An Elysian Tail
Shared: Action · Platformer · Adventure
Prince of Persia The Lost Crown
Shared: Action · Metroidvania · 2D Platformer
Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Metroidvania · Side Scroller
Skul: The Hero Slayer
Shared: Action · Platformer · 2D
Afterimage
Shared: Metroidvania · 2D Platformer · Side Scroller
Constance
Shared: Action · Platformer · Metroidvania
DEVIATOR
Shared: Action · Metroidvania · Platformer
Castlevania: Belmont's Curse
Shared: Action · Metroidvania · 2D Platformer
Rogue Legacy 2
Shared: Action · Platformer · Metroidvania
Bloodstained: Ritual of the Night
Shared: Action · Adventure · Metroidvania
Eastern Exorcist
Shared: Action · Adventure · Side Scroller