Free games like Radiation Caterpillar
Below are 8 free-to-play Steam games similar to Radiation Caterpillar, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Radiation Caterpillar page.
Ranked picks
- 1
Doki Doki Literature Club!
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window. Shares Indie and Casual with Radiation Caterpillar.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
- 2
Life is Strange - Episode 1
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
- 3
Ultimate Custom Night
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window. Shares Indie with Radiation Caterpillar.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 4
The Murder of Sonic the Hedgehog
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window. Shares Indie and Casual with Radiation Caterpillar.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 5
Indigo Park: Chapter 1
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window. Shares Indie with Radiation Caterpillar.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 6
Sheepy: A Short Adventure
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window. Shares Indie and Casual with Radiation Caterpillar.
A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.
- 7
Our Life: Beginnings & Always
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window. Shares Indie and Casual with Radiation Caterpillar.
A twenty-dollar bill, four summers, fifteen years, and a one of a kind life. Create an experience that’s all your own in this near-fully customizable visual novel where you grow from childhood to adulthood with the lonely boy next door.
- 8
missed messages.
Free-to-play alternative to Radiation Caterpillar — no purchase or trial window. Shares Indie and Casual with Radiation Caterpillar.
‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.