Games like BOOSTRUSH
Games like BOOSTRUSH include Refunct, Chained Together, Pseudoregalia, Portal 2, and VHOLUME. We matched them by the tags players give BOOSTRUSH on Steam (Casual, Platformer, 3D Platformer, Puzzle Platformer, and 3D): closest matches first, and among equally close ones the better-known games.

Refunct
Shared: 3D Platformer · Casual · Parkour

Chained Together
Shared: Platformer · Casual · Puzzle Platformer

Pseudoregalia
Shared: 3D Platformer · Platformer · Parkour

Portal 2
Shared: Platformer · Singleplayer · Puzzle Platformer

VHOLUME
Shared: 3D Platformer · Platformer · Casual

Sonic Adventure DX
Shared: Platformer · 3D Platformer · Singleplayer

Portal
Shared: Puzzle Platformer · 3D Platformer · Singleplayer

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

Prince of Persia®: The Sands of Time
Shared: Platformer · Parkour · Third Person

Sonic Frontiers
Shared: 3D Platformer · 3D · Platformer

Sonic Adventure 2
Shared: 3D Platformer · Platformer · Third Person

Neon White
Shared: 3D Platformer · Platformer · Parkour

Carry The Glass
Shared: Puzzle Platformer · Platformer · 3D Platformer

A Story About My Uncle
Shared: Platformer · Parkour · 3D Platformer

BETON BRUTAL
Shared: 3D Platformer · Casual · Platformer

SONIC X SHADOW GENERATIONS
Shared: 3D Platformer · Platformer · 3D

Spark the Electric Jester 3
Shared: 3D Platformer · Platformer · 3D

Climb The Backrooms
Shared: Casual · Platformer · 3D Platformer

Only Up: With Friends
Shared: Casual · Parkour · 3D Platformer

Sonic Lost World
Shared: Platformer · 3D Platformer · Parkour

Only Climb: Better Together
Shared: 3D Platformer · Platformer · 3D

Haste
Shared: 3D Platformer · Parkour · Singleplayer

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

Quantum Conundrum
Shared: Puzzle Platformer · 3D Platformer · Casual