Games like ShironoTou
Games like ShironoTou include Portal 2, Psychonauts, Sonic Adventure 2, Sonic Adventure DX, and Sonic Frontiers. We matched them by the tags players give ShironoTou on Steam (Action, Platformer, 3D Platformer, 3D, and Third Person): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · Singleplayer · 3D Platformer

Psychonauts
Shared: Platformer · Action · 3D Platformer

Sonic Adventure 2
Shared: Action · 3D Platformer · Platformer

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

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

Portal
Shared: 3D Platformer · Singleplayer · Action

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

Crash Bandicoot™ 4: It’s About Time
Shared: Action · Platformer · 3D Platformer

Ratchet & Clank: Rift Apart
Shared: 3D Platformer · Action · Third Person

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

Pseudoregalia
Shared: 3D Platformer · Platformer · 3D

SpongeBob SquarePants: The Cosmic Shake
Shared: 3D Platformer · Platformer · Action

Crash Bandicoot™ N. Sane Trilogy
Shared: 3D Platformer · Platformer · Action

Get To Work
Shared: 3D Platformer · Funny · Action

Clustertruck
Shared: Action · 3D Platformer · Physics

Tiny and Big: Grandpas Leftovers
Shared: Platformer · 3D Platformer · Physics

Psychonauts 2
Shared: 3D Platformer · Singleplayer · Platformer

Pumpkin Jack
Shared: Action · 3D Platformer · Third Person

SpongeBob SquarePants: Titans of the Tide
Shared: 3D Platformer · Platformer · Action

Grand Theft Auto V Legacy
Shared: Action · Third Person · Singleplayer

ALTF4
Shared: 3D Platformer · Action · Physics

Yellow Taxi Goes Vroom
Shared: 3D Platformer · 3D · Platformer

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

Gorilla Tag
Shared: Funny · 3D · Action