Games like Cozy Radiation Cleaner
Games like Cozy Radiation Cleaner include Platform 8, The Room 4: Old Sins, The Room, The House of Da Vinci, and Slime Rancher. We matched them by the tags players give Cozy Radiation Cleaner on Steam (Adventure, Hidden Object, Simulation, Puzzle, and Exploration): closest matches first, and among equally close ones the better-known games.

Platform 8
Shared: Adventure · Simulation · Hidden Object

The Room 4: Old Sins
Shared: Adventure · Puzzle · Hidden Object

The Room
Shared: Puzzle · Adventure · Hidden Object

The House of Da Vinci
Shared: Hidden Object · Puzzle · Adventure

Slime Rancher
Shared: Adventure · Exploration · Simulation

FAR: Lone Sails
Shared: Adventure · Exploration · Post-apocalyptic

Chants of Sennaar
Shared: Adventure · Puzzle · Point & Click

The Room Two
Shared: Puzzle · Hidden Object · Adventure

Morphopolis
Shared: Hidden Object · Puzzle · Adventure

The Room Three
Shared: Adventure · Puzzle · Hidden Object

COCOON
Shared: Adventure · Puzzle · Exploration

Boxes: Lost Fragments
Shared: Adventure · Puzzle · Hidden Object

SnowRunner
Shared: Simulation · Adventure · Exploration

The Talos Principle 2
Shared: Puzzle · Exploration · First-Person

[Chillas Art] The Closing Shift
Shared: Adventure · Simulation · Puzzle

The Witness
Shared: Puzzle · Exploration · Adventure

Outer Wilds
Shared: Adventure · Exploration · Puzzle

Fallout 4
Shared: Adventure · Exploration · Post-apocalyptic

The Long Dark
Shared: Exploration · Adventure · Simulation

Supraland
Shared: Adventure · Exploration · Puzzle Platformer

Myst
Shared: Adventure · Puzzle · Exploration

Big Walk
Shared: Puzzle · Adventure · Exploration

SchoolBoy Runaway
Shared: Adventure · Puzzle · Simulation

Killer Frequency
Shared: Adventure · Puzzle · Simulation