Games like Radioactivity
If Radioactivity is your kind of game, the closest matches are Echoes Afterfall, Backrooms: The Others and Backrooms: The Next Level — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Radioactivity: Radioactivity is a co-op survival horror. You are a Liquidator! Together or alone, help your state clean up post-apocalyptic radioactive wilderness. Plan each deployment, fight radiation spread and the creatures that it produces. Together, make WEA flourish once more!

Players who liked Radioactivity also play
Steam players who put hours into Radioactivity also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Echoes Afterfall
WHY THIS
Top pick for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Action and Adventure with Radioactivity.
Team up in a chilling co-op experience, delving into procedurally generated backroom style buildings. Survive together or succumb into the Echoes.
Backrooms: The Others
WHY THIS
Second-strongest match for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Radioactivity.
Backrooms: The Others is a cooperative horror game for up to 4 players where you will be forced to explore these unknown nooks and crannies, trying to survive in this complex world where death can be waiting for you at every turn!
Backrooms: The Next Level
WHY THIS
Third-strongest match for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Indie and Adventure with Radioactivity.
Backrooms: The Next Level is a Co-op horror game up to 4 players, where you and your friends will explore the game, try to pass the game level using your mind, wit, remembering the places where you were
PILGRIM
WHY THIS
Ranked #4 for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Radioactivity.
Pilgrim is a medieval-based, co-op horror, adventure. Can you and your friends make it to the end of The Road?
The Refuge
WHY THIS
Ranked #5 for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Radioactivity.
Serve the A.R.C organization. Infiltrate infested zones, complete contracts, and extract with your resources. Upgrade your facilities and complete quests to unlock new services. An intense PvE extraction where the difficulty increases with your ambitions.
MISERY
WHY THIS
Ranked #6 for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Radioactivity.
MISERY is a 1–5 player co-op survival game set in a nuclear disaster zone. Here, every day is a struggle: search radioactive ruins for resources, build your bunker, craft weapons, and explore a weird, procedurally-generated world with your friends. Beware of anomalies, monsters, and armed bandits.
Junk Survivor
WHY THIS
Ranked #7 for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Radioactivity.
Junk Survivor is a zombie post-apocalypse game where you loot, craft, build and farm in a struggle to survive. With a vast map to explore, a robust skillset to unlock this customizable sandbox awaits the adventurer. How long before you die!
Backrooms Lost Runners
WHY THIS
Ranked #8 for Radioactivity fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Radioactivity.
Backrooms Lost Runners is a co-op survival horror with team play, voice-reactive AI, and immersive puzzles. This isn’t a “walking simulator”: explore liminal spaces, outsmart entities, and remember—even a whisper can give you away.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Life is Strange - Episode 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with Radioactivity.
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.
Ultimate Custom Night
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Radioactivity.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
Bongo Cat
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Radioactivity.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
ENA: Dream BBQ
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Radioactivity.
Experience surreal environments and inexplicable characters as ENA in a new wild world.
The Murder of Sonic the Hedgehog
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Radioactivity.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Radioactivity.
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.
STRAFTAT
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Radioactivity.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
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Head-to-head comparisons
Frequently asked about Radioactivity
- Does Radioactivity have multiplayer or co-op?
- Yes — Radioactivity supports multi-player play according to its Steam store listing (Multi-player, Online Co-op, LAN Co-op).
- What games are most similar to Radioactivity?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Radioactivity are Echoes Afterfall, Backrooms: The Others, Backrooms: The Next Level.
- Who developed Radioactivity?
- Radioactivity was developed by Synthetic Mind Corp..
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Radioactivity.
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