Games like Mountain Hook
Games like Mountain Hook include Geometry Dash, Portal 2, Super Meat Boy, Ori and the Will of the Wisps, and Pogostuck: Rage With Your Friends. We matched them by the tags players give Mountain Hook on Steam (Action, Singleplayer, Platformer, Precision Platformer, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

Geometry Dash
Shared: Singleplayer · Precision Platformer · Platformer

Portal 2
Shared: Singleplayer · Platformer · Action

Super Meat Boy
Shared: Platformer · Precision Platformer · Singleplayer

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

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Platformer · Action

Celeste
Shared: Precision Platformer · Platformer · Singleplayer

Sonic Forces
Shared: Action · Platformer · Singleplayer

A Difficult Game About Climbing
Shared: Singleplayer · Platformer · Action

F.I.S.T.: Forged In Shadow Torch
Shared: Action · Platformer · Singleplayer

SONIC X SHADOW GENERATIONS
Shared: Action · Platformer · Singleplayer

VVVVVV
Shared: Platformer · Precision Platformer · Singleplayer

The End Is Nigh
Shared: Platformer · Precision Platformer · Singleplayer

MONSTER HUNTER RISE
Shared: Action · Singleplayer · Character Customization

Jump King
Shared: Precision Platformer · Platformer · Action

Electronic Super Joy
Shared: Platformer · Singleplayer · Action

STAR WARS Jedi: Survivor™
Shared: Action · Singleplayer · Character Customization

Deadlight
Shared: Action · Platformer · Singleplayer

Dust: An Elysian Tail
Shared: Action · Platformer · Singleplayer

Neon White
Shared: Action · Platformer · Singleplayer

Tomba! Special Edition
Shared: Action · Platformer · Singleplayer

Rogue Legacy 2
Shared: Action · Platformer · Singleplayer

Sonic Adventure 2
Shared: Action · Platformer · Singleplayer

Dungeon Escape
Shared: Precision Platformer · Platformer · Action

Sonic the Hedgehog 4 Episode 1
Shared: Action · Platformer · Singleplayer

