Games like Helping Hand
Games like Helping Hand include Portal 2, Chained Together, LIMBO, Portal, and Refunct. We matched them by the tags players give Helping Hand on Steam (Dark Fantasy, Puzzle Platformer, Platformer, 3D Platformer, and First-Person): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · First-Person · Puzzle Platformer

Chained Together
Shared: Platformer · Puzzle Platformer · 3D Platformer

LIMBO
Shared: Puzzle Platformer · Platformer · Indie

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

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

Little Nightmares
Shared: Puzzle Platformer · Singleplayer · Indie

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

INSIDE
Shared: Puzzle Platformer · Dark · Indie

Viewfinder
Shared: Puzzle Platformer · First-Person · Singleplayer

Supraland
Shared: Puzzle Platformer · First-Person · Adventure

Legacy of Kain™ Soul Reaver 1&2 Remastered
Shared: Dark Fantasy · Platformer · Third Person

Hollow Knight
Shared: Platformer · Indie · Singleplayer

Tainted Grail: The Fall of Avalon
Shared: Dark Fantasy · First-Person · Adventure

Seen
Shared: Indie · Dark · Platformer

Idols of Ash
Shared: Dark Fantasy · First-Person · 3D Platformer

Alice: Madness Returns
Shared: Dark Fantasy · 3D Platformer · Platformer

FEZ
Shared: Platformer · Indie · Puzzle Platformer

Little Nightmares II
Shared: Singleplayer · Dark · Adventure

White Shadows
Shared: Platformer · Dark Fantasy · Indie

Pumpkin Jack
Shared: 3D Platformer · Indie · Adventure

The Midnight Walk
Shared: Dark Fantasy · VR · Adventure

Sonic Frontiers
Shared: 3D Platformer · Adventure · Platformer

Moss II VR
Shared: Puzzle Platformer · VR · Platformer

Moss VR
Shared: VR · Puzzle Platformer · Adventure