Games like Hop 'n' Marty
Games like Hop 'n' Marty include A Hat in Time, Sonic Frontiers, Bubsy 4D, Toree 3D, and Yooka-Laylee. We matched them by the tags players give Hop 'n' Marty on Steam (3D Platformer, Exploration, Collectathon, Tutorial, and Platformer): closest matches first, and among equally close ones the better-known games.

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

Sonic Frontiers
Shared: 3D Platformer · Exploration · Action-Adventure

Bubsy 4D
Shared: 3D Platformer · Exploration · Collectathon

Toree 3D
Shared: 3D Platformer · Platformer · Exploration

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

Chained Together
Shared: Platformer · 3D Platformer · Exploration

Pumpkin Jack
Shared: 3D Platformer · Collectathon · Platformer

Corn Kidz 64
Shared: 3D Platformer · Collectathon · Exploration

Cirno! Lifts a Boulder
Shared: 3D Platformer · Exploration · Collectathon

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

Yooka-Replaylee
Shared: 3D Platformer · Exploration · Collectathon

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

Slime Rancher
Shared: Exploration · Cute · Adventure

Psychonauts
Shared: Platformer · 3D Platformer · Funny

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

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

Toree 2
Shared: 3D Platformer · Exploration · Platformer

Orbo's Odyssey
Shared: 3D Platformer · Action-Adventure · Exploration

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

Tinykin
Shared: 3D Platformer · Action-Adventure · Cute

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

Deaths Door
Shared: 3D Platformer · Cute · Action-Adventure

STAR WARS Jedi: Fallen Order™
Shared: Action-Adventure · Exploration · Third Person

Kena: Bridge of Spirits
Shared: Exploration · 3D Platformer · Action-Adventure