Games like Jamhouse
Games like Jamhouse include Portal, Portal 2, Planet of Lana, Defy Gravity Extended, and LIMBO. We matched them by the tags players give Jamhouse on Steam (Action, Puzzle Platformer, Score Attack, Puzzle, and Match 3): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle Platformer · Puzzle · Singleplayer

Portal 2
Shared: Puzzle · Singleplayer · Puzzle Platformer

Planet of Lana
Shared: Action · Puzzle Platformer · Puzzle

Defy Gravity Extended
Shared: Puzzle Platformer · Puzzle · Action

LIMBO
Shared: Puzzle Platformer · Puzzle · Indie

Rise of the Tomb Raider™
Shared: Action · Singleplayer · Female Protagonist

Tomb Raider Game of the Year
Shared: Action · Female Protagonist · Singleplayer

Unravel
Shared: Action · Puzzle · Singleplayer

Bright Memory: Infinite
Shared: Action · Female Protagonist · Singleplayer

Zuma's Revenge!
Shared: Action · Puzzle · Singleplayer

Seen
Shared: Puzzle · Singleplayer · Indie

Human Fall Flat
Shared: Puzzle · Puzzle Platformer · Action

Haydee
Shared: Puzzle · Female Protagonist · Action

Iconoclasts
Shared: Action · Indie · Female Protagonist

EDGE
Shared: Puzzle Platformer · Action · Puzzle

Little Nightmares
Shared: Puzzle Platformer · Singleplayer · Puzzle

GRIS
Shared: Female Protagonist · Indie · Singleplayer

Chants of Sennaar
Shared: Puzzle · Singleplayer · Indie

Viewfinder
Shared: Puzzle Platformer · Puzzle · Singleplayer

SUPERHOT
Shared: Action · Singleplayer · Indie

ICEY
Shared: Action · Female Protagonist · Singleplayer

Hob
Shared: Action · Puzzle · Singleplayer

Mirror 2: Project X
Shared: Match 3 · Female Protagonist · Singleplayer

Lara Croft and the Guardian of Light
Shared: Action · Puzzle · Puzzle Platformer