Games like Mr. Sleepy Man
Games like Mr. Sleepy Man include A Hat in Time, Slime Rancher, Pumpkin Jack, Psychonauts, and Sonic Frontiers. We matched them by the tags players give Mr. Sleepy Man on Steam (Adventure, 3D Platformer, Comedy, Platformer, and Sandbox): closest matches first, and among equally close ones the better-known games.

A Hat in Time
Shared: 3D Platformer · Adventure · Collectathon

Slime Rancher
Shared: Adventure · Exploration · Singleplayer

Pumpkin Jack
Shared: Adventure · 3D Platformer · Collectathon

Psychonauts
Shared: Adventure · Comedy · Platformer

Sonic Frontiers
Shared: 3D Platformer · Adventure · Exploration

Yooka-Laylee
Shared: 3D Platformer · Adventure · Platformer

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

Psychonauts 2
Shared: 3D Platformer · Comedy · Adventure

Spyro™ Reignited Trilogy
Shared: Adventure · 3D Platformer · Platformer

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

PEAK
Shared: Adventure · Comedy · Exploration

Grow Home
Shared: Adventure · 3D Platformer · Exploration

Orbo's Odyssey
Shared: 3D Platformer · Comedy · Adventure

Totally Accurate Battle Simulator
Shared: Sandbox · Adventure · Singleplayer

Bully: Scholarship Edition
Shared: Adventure · Comedy · Singleplayer

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

Stray
Shared: Adventure · Exploration · Singleplayer

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

Ratchet & Clank: Rift Apart
Shared: Adventure · 3D Platformer · Singleplayer

TY the Tasmanian Tiger
Shared: 3D Platformer · Adventure · Platformer

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

Funi Raccoon Game
Shared: Adventure · 3D Platformer · Platformer

Hollow Knight
Shared: Platformer · Adventure · Exploration

Squirrel with a Gun
Shared: Sandbox · Platformer · 3D Platformer