Games like Puzzle: Underwater World
Games like Puzzle: Underwater World include Zup! S, There Is No Game: Wrong Dimension, Gorogoa, Mini Metro, and The Room. We matched them by the tags players give Puzzle: Underwater World on Steam (Singleplayer, Puzzle, Casual, Indie, and Strategy): closest matches first, and among equally close ones the better-known games.

Zup! S
Shared: Puzzle · Casual · Indie

There Is No Game: Wrong Dimension
Shared: Puzzle · Indie · Adventure

Gorogoa
Shared: Puzzle · Singleplayer · Indie

Mini Metro
Shared: Puzzle · Strategy · Singleplayer

The Room
Shared: Puzzle · Singleplayer · Adventure

Hexcells
Shared: Puzzle · Casual · Singleplayer

Plants vs. Zombies GOTY Edition
Shared: Singleplayer · Casual · Strategy

Moncage
Shared: Puzzle · Casual · Singleplayer

Zup!
Shared: Puzzle · Casual · Indie

Papers, Please
Shared: Indie · Singleplayer · Puzzle

Zup! F
Shared: Puzzle · Casual · Indie

Chants of Sennaar
Shared: Puzzle · Singleplayer · Indie

Zup! 2
Shared: Puzzle · Casual · Indie

Scribblenauts Unlimited
Shared: Puzzle · Casual · Singleplayer

Game Dev Tycoon
Shared: Indie · Singleplayer · Casual

BEEP
Shared: Indie · Singleplayer · Adventure

Zup! 3
Shared: Puzzle · Casual · Indie

The Legend of Bum-Bo
Shared: Indie · Strategy · Puzzle

Zup! Z
Shared: Puzzle · Casual · Indie

Little Inferno
Shared: Casual · Puzzle · Singleplayer

Baba Is You
Shared: Puzzle · Singleplayer · Indie

Hexcells Infinite
Shared: Puzzle · Casual · Indie

12 Labours of Hercules
Shared: Casual · Puzzle · Strategy

Morphopolis
Shared: Puzzle · Indie · Casual