Games like Fathoms
Games like Fathoms include Hollow Knight, Hollow Knight: Silksong, Cave Story+, Minishoot' Adventures, and Ori and the Will of the Wisps. We matched them by the tags players give Fathoms on Steam (Exploration, Metroidvania, Bullet Hell, Shooter, and 2D): closest matches first, and among equally close ones the better-known games.
Hollow Knight
Shared: Metroidvania · Exploration · 2D
Hollow Knight: Silksong
Shared: Metroidvania · Exploration · 2D
Cave Story+
Shared: Exploration · Metroidvania · Shooter
Minishoot' Adventures
Shared: Metroidvania · Bullet Hell · Exploration
Ori and the Will of the Wisps
Shared: Metroidvania · Exploration · Story Rich
Rabi-Ribi
Shared: Metroidvania · Bullet Hell · Exploration
ANIMAL WELL
Shared: Exploration · Metroidvania · 2D
Touhou Luna Nights
Shared: Metroidvania · Exploration · Bullet Hell
Axiom Verge
Shared: Metroidvania · 2D · Exploration
Fallout 4
Shared: Exploration · Shooter · Adventure
Nine Sols
Shared: Metroidvania · 2D · Story Rich
Dust: An Elysian Tail
Shared: Metroidvania · 2D · Exploration
Terraria
Shared: 2D · Exploration · Adventure
Blasphemous
Shared: Metroidvania · 2D · Pixel Graphics
Rain World
Shared: Exploration · 2D · Metroidvania
Haiku, the Robot
Shared: Metroidvania · Exploration · Adventure
S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Exploration · Shooter · Story Rich
TEVI
Shared: Metroidvania · Bullet Hell · 2D
Gato Roboto
Shared: Metroidvania · 2D · Exploration
Dead Cells
Shared: Metroidvania · 2D · Adventure
Momodora: Reverie Under The Moonlight
Shared: Metroidvania · Exploration · 2D
Half-Life 2
Shared: Shooter · Story Rich · Action
DAVE THE DIVER
Shared: Exploration · Adventure · Underwater
Vampire Survivors
Shared: Bullet Hell · 2D · Indie