Games like Muscle Ninja VR
Games like Muscle Ninja VR include Gorilla Tag, Portal 2, Portal, Clustertruck, and Assetto Corsa. We matched them by the tags players give Muscle Ninja VR on Steam (Racing, Action, 3D Platformer, Puzzle Platformer, and Casual): closest matches first, and among equally close ones the better-known games.

Gorilla Tag
Shared: VR · Parkour · 3D Platformer

Portal 2
Shared: Platformer · Puzzle Platformer · 3D Platformer

Portal
Shared: Puzzle Platformer · 3D Platformer · Action

Clustertruck
Shared: Action · Parkour · 3D Platformer

Assetto Corsa
Shared: Racing · VR · Simulation

Refunct
Shared: 3D Platformer · Parkour · Puzzle Platformer

BONEWORKS
Shared: VR · Action · Physics

Chained Together
Shared: Casual · Puzzle Platformer · Platformer

Climber Animals: Together
Shared: Physics · Puzzle Platformer · Casual

SpeedRunners
Shared: Racing · Action · Platformer

Haste
Shared: 3D Platformer · Action · Parkour

Human Fall Flat
Shared: Puzzle Platformer · Physics · Action

Kao the Kangaroo: Round 2 (2003 re-release)
Shared: Action · 3D Platformer · Racing

Garry's Mod
Shared: Physics · Casual · Funny

Wreckfest
Shared: Racing · Action · Physics

Automobilista 2
Shared: Racing · VR · Action

SEUM: Speedrunners from Hell
Shared: 3D Platformer · Racing · Parkour

Neon White
Shared: 3D Platformer · Action · Parkour

Uncrashed : FPV Drone Simulator
Shared: Racing · Physics · Action

Need for Speed™ Unbound
Shared: Racing · Action · Character Customization

Gang Beasts
Shared: Action · Casual · Physics

Rooftops & Alleys: The Parkour Game
Shared: 3D Platformer · Parkour · Sports

Goat Simulator
Shared: Action · Casual · Physics

4Wheel Challenge
Shared: 3D Platformer · Racing · Physics