Games like Clean the Sea!
Games like Clean the Sea! include Slime Rancher, Disney Dreamlight Valley, Goat Simulator 3, Stardew Valley, and Staxel. We matched them by the tags players give Clean the Sea! on Steam (Exploration, Collectathon, Sandbox, Nature, and Sailing): closest matches first, and among equally close ones the better-known games.
Slime Rancher
Shared: Exploration · Cute · Sandbox
Disney Dreamlight Valley
Shared: Exploration · Sandbox · Character Customization
Goat Simulator 3
Shared: Exploration · Sandbox · Character Customization
Stardew Valley
Shared: Farming Sim · Sandbox · Relaxing
Staxel
Shared: Sandbox · Farming Sim · Nature
A Short Hike
Shared: Exploration · Relaxing · Nature
SPORE™
Shared: Sandbox · Exploration · Open World
SimplePlanes
Shared: Sandbox · Exploration · Automation
Little Kitty, Big City
Shared: Exploration · Sandbox · Cute
Paleo Pines
Shared: Exploration · Farming Sim · Relaxing
Stormworks: Build and Rescue
Shared: Sandbox · Exploration · Automation
Critter Cove
Shared: Exploration · Sandbox · Farming Sim
Sledding Game
Shared: Sandbox · Cute · Collectathon
Placid Plastic Duck Simulator
Shared: Collectathon · Cute · Relaxing
Garden Paws
Shared: Exploration · Sandbox · Farming Sim
Out of Ore
Shared: Exploration · Sandbox · Farming Sim
Plantera
Shared: Collectathon · Sandbox · Automation
Farm Together
Shared: Farming Sim · Sandbox · Relaxing
Yonder: The Cloud Catcher Chronicles
Shared: Exploration · Sandbox · Farming Sim
Farming Simulator 22
Shared: Farming Sim · Sandbox · Simulation
WEBFISHING
Shared: Character Customization · Cute · Collectathon
Tiny Glade
Shared: Sandbox · Relaxing · Nature
Paralives
Shared: Character Customization · Sandbox · Simulation
Satisfactory
Shared: Automation · Exploration · Sandbox