Games like Stash Grabber
Games like Stash Grabber include Portal, Portal 2, Clustertruck, Neon White, and SEUM: Speedrunners from Hell. We matched them by the tags players give Stash Grabber on Steam (3D Platformer, Physics, Action, Heist, and First-Person): closest matches first, and among equally close ones the better-known games.

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

Portal 2
Shared: First-Person · Platformer · 3D Platformer

Clustertruck
Shared: Action · 3D Platformer · First-Person

Neon White
Shared: 3D Platformer · Action · Platformer

SEUM: Speedrunners from Hell
Shared: 3D Platformer · First-Person · Precision Platformer

Refunct
Shared: 3D Platformer · First-Person · Parkour

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

Gorilla Tag
Shared: First-Person · 3D Platformer · Action

Cyber Hook
Shared: 3D Platformer · Action · First-Person

Teardown
Shared: Physics · Heist · First-Person

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

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

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

Human Fall Flat
Shared: Physics · Action · Puzzle Platformer

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

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

Haste
Shared: 3D Platformer · Action · Parkour

Hot Lava
Shared: 3D Platformer · Precision Platformer · Parkour

DeadCore
Shared: Action · Platformer · 3D Platformer

Climber Animals: Together
Shared: Physics · 3D Platformer · Platformer

The Ball
Shared: 3D Platformer · First-Person · Action

Supraland
Shared: Puzzle Platformer · Physics · First-Person

CICADAMATA"
Shared: Action · 3D Platformer · First-Person

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