Games like Radiation Caterpillar
Games like Radiation Caterpillar include OneShot, Papers, Please, Unpacking, There Is No Game: Wrong Dimension, and Gorogoa. We matched them by the tags players give Radiation Caterpillar on Steam (Casual, Indie, Puzzle, Choose Your Own Adventure, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

OneShot
Shared: Indie · Pixel Graphics · Story Rich

Papers, Please
Shared: Indie · Pixel Graphics · Puzzle

Unpacking
Shared: Casual · Pixel Graphics · Puzzle

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

Gorogoa
Shared: Puzzle · Indie · Casual

Assemble with Care
Shared: Casual · Indie · Puzzle

Little Inferno
Shared: Casual · Indie · Puzzle

DISTRAINT: Deluxe Edition
Shared: Indie · Pixel Graphics · Story Rich

FEZ
Shared: Indie · Puzzle · Pixel Graphics

The Test
Shared: Choose Your Own Adventure · Pixel Graphics · Story Rich

Brothers - A Tale of Two Sons
Shared: Indie · Atmospheric · Puzzle

Baba Is You
Shared: Indie · Puzzle · Pixel Graphics

The Room
Shared: Puzzle · Atmospheric · Indie

Return of the Obra Dinn
Shared: Puzzle · Indie · Atmospheric

Pony Island
Shared: Indie · Puzzle · Pixel Graphics

Moncage
Shared: Casual · Puzzle · Indie

Little Nightmares
Shared: Atmospheric · Puzzle · Indie

The Last Campfire
Shared: Puzzle · Indie · Singleplayer

GRIS
Shared: Indie · Atmospheric · Singleplayer

Tales of the Black Forest
Shared: Indie · Pixel Graphics · Story Rich

Please, Don’t Touch Anything
Shared: Indie · Puzzle · Pixel Graphics

Glass Masquerade
Shared: Casual · Puzzle · Indie

Sally Face - Episode One
Shared: Indie · Story Rich · Puzzle

To the Moon
Shared: Indie · Story Rich · Pixel Graphics