Games like OrganGame-MergePuzzle-
Games like OrganGame-MergePuzzle- include Portal 2, Zup! S, CHUCHEL, Portal, and World of Goo. We matched them by the tags players give OrganGame-MergePuzzle- on Steam (Casual, Puzzle, Colorful, Dark Humor, and 2D): closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Puzzle · Dark Humor · Singleplayer

Zup! S
Shared: Casual · Puzzle · 2D

CHUCHEL
Shared: Casual · Colorful · Comedy

Portal
Shared: Puzzle · Puzzle Platformer · Singleplayer

World of Goo
Shared: Puzzle · Casual · 2D

Is This Seat Taken?
Shared: Casual · Puzzle · Cute

Zup!
Shared: Casual · Puzzle · 2D

Donut County
Shared: Casual · Puzzle · Cute

Cat Goes Fishing
Shared: 2D · Casual · Cute

Zup! X
Shared: Casual · Puzzle · 2D

Plants vs. Zombies GOTY Edition
Shared: Casual · Singleplayer · 2D

Pikuniku
Shared: Casual · Puzzle · Cute

Little Inferno
Shared: Casual · Puzzle · Singleplayer

Zup! 2
Shared: Casual · Puzzle · 2D

Zup! F
Shared: Casual · Puzzle · 2D

Zuma Deluxe
Shared: Puzzle · Casual · 2D

Zup! 3
Shared: Casual · Puzzle · 2D

The WereCleaner
Shared: Casual · Dark Humor · Cute

Scribblenauts Unlimited
Shared: Casual · Puzzle · 2D

Zup! 8
Shared: Casual · Puzzle · 2D

A Little to the Left
Shared: Puzzle · Casual · Cute

There Is No Game: Wrong Dimension
Shared: Puzzle · Casual · 2D

Draw & Guess
Shared: Casual · 2D · Funny

Zup! Z
Shared: Puzzle · Casual · 2D