Games like Cozy Blocks: Undersea Adventure
Games like Cozy Blocks: Undersea Adventure include Slime Rancher 2, Is This Seat Taken?, Assemble with Care, A Little to the Left, and Monument Valley. We matched them by the tags players give Cozy Blocks: Undersea Adventure on Steam (Cartoon, Singleplayer, Split Screen, Female Protagonist, and Cozy): closest matches first, and among equally close ones the better-known games.

Slime Rancher 2
Shared: Singleplayer · Relaxing · Cute

Is This Seat Taken?
Shared: Puzzle · Relaxing · Cozy

Assemble with Care
Shared: Puzzle · Singleplayer · Female Protagonist

A Little to the Left
Shared: Puzzle · Relaxing · Singleplayer

Monument Valley
Shared: Singleplayer · Puzzle · Relaxing

TOEM: A Photo Adventure
Shared: Cozy · Puzzle · Relaxing

Creature Kitchen
Shared: Cozy · Puzzle · Relaxing

The Last Campfire
Shared: Singleplayer · Puzzle · Relaxing

Camper Van: Make it Home
Shared: Singleplayer · Puzzle · Relaxing

LEGO® Builder's Journey
Shared: Singleplayer · Relaxing · Puzzle

The Artisan of Glimmith
Shared: Puzzle · Cozy · Logic

Carto
Shared: Puzzle · Relaxing · Singleplayer

Unpacking
Shared: Relaxing · Singleplayer · Puzzle

Zup! S
Shared: Puzzle · Singleplayer · Relaxing

Woodo
Shared: Singleplayer · Cozy · Relaxing

Squeakross: Home Squeak Home
Shared: Puzzle · Logic · Relaxing

Moncage
Shared: Singleplayer · Puzzle · Cartoon

Donut County
Shared: Puzzle · Singleplayer · Casual

Alba: A Wildlife Adventure
Shared: Cozy · Female Protagonist · Family Friendly

Hexcells
Shared: Singleplayer · Puzzle · Logic

GRIS
Shared: Female Protagonist · Singleplayer · Relaxing

Baba Is You
Shared: Singleplayer · Puzzle · Logic

Hozy
Shared: Cozy · Relaxing · Puzzle

Portal 2
Shared: Singleplayer · Puzzle · Female Protagonist