Games like Traversion
Games like Traversion include Portal 2, VHOLUME, Only Climb: Better Together, Portal, and A Story About My Uncle. We matched them by the tags players give Traversion on Steam (Casual, Arcade, Platformer, Puzzle, and 3D Platformer): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · Puzzle · First-Person

VHOLUME
Shared: Casual · 3D Platformer · Platformer

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

Portal
Shared: Puzzle · 3D Platformer · First-Person

A Story About My Uncle
Shared: Platformer · First-Person · 3D Platformer

Refunct
Shared: 3D Platformer · Casual · Platformer

hololive Treasure Mountain
Shared: Casual · Arcade · Puzzle

Mirror's Edge™
Shared: 3D Platformer · Platformer · First-Person

ALTF4
Shared: 3D Platformer · Arcade · Casual

Peggle Deluxe
Shared: Casual · Arcade · Puzzle

Neon White
Shared: 3D Platformer · Platformer · Precision Platformer

BETON BRUTAL
Shared: Casual · 3D Platformer · Precision Platformer

Geometry Dash
Shared: Platformer · Precision Platformer · Colorful

Zup! S
Shared: Casual · Puzzle · Indie

Lunistice
Shared: 3D Platformer · Platformer · Arcade

Sizeable
Shared: Casual · Puzzle · 3D

Climb The Backrooms
Shared: Casual · Platformer · Puzzle

Marble It Up! Ultra
Shared: 3D Platformer · Arcade · Platformer

Quantum Conundrum
Shared: Puzzle · 3D Platformer · Casual

White Knuckle
Shared: Platformer · 3D Platformer · First-Person

Zup!
Shared: Casual · Puzzle · Indie

Zuma Deluxe
Shared: Arcade · Puzzle · Casual

SEUM: Speedrunners from Hell
Shared: 3D Platformer · Platformer · Precision Platformer

FEZ
Shared: Platformer · Puzzle · Casual