Radiation Island
Radiation Island is a survival adventure game where you craft your own destiny in a huge open world environment. As part of the Philadelphia Experiment you have become stranded in a parallel, alternate reality. Discover this new and mysterious world, with all its surprises.
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
About Radiation Island
Follow your own path in an environment of breathtaking beauty and gigantic scope. Explore huge forests inhabited by dangerous wolves, bears and mountain lions. Investigate abandoned villages and old military compounds where zombies guard vital tools, weapons and clues to the secrets of this world. You can even swim and dive, if you can avoid the hungry crocodiles.
Hunt wild animals, fish or gather fruits to overcome hunger. Mine for resources and craft weapons, tools and basic vehicles. Find hidden treasures, equipment and fire arms to prevail in a world full of perils: radiation, anomalies, harsh weather and enraged zombies.
Experience the full day-night cycle and face the dangers of darkness and cold.
Game details
Game details
Age ratings
Game modes
Languages
Audio & text: English
Text only: French, Italian, German, Spanish - Spain, Japanese, Korean, Portuguese - Portugal, Russian, Simplified Chinese
Radiation Island price history
Lowest tracked price: £1.43 (Jul 7, 2026) · current best: £7.19 across 2 stores.
Radiation Island player count & reviews
81% positive reviews all-time · 7 peak players in the last 30 days.
Radiation Island — frequently asked questions
Where can I buy Radiation Island at the cheapest price?
Right now the cheapest offer for Radiation Island is £7.19 at Steam. KingsPrice compares 2 offers from 2 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Radiation Island has ever been?
The lowest price KingsPrice has tracked for Radiation Island is £1.43 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Radiation Island?
Radiation Island peaked at 7 concurrent players on Steam in the last 30 days (highest on Jul 8, 2026). The player chart on this page updates daily.
Is it safe to buy a Radiation Island Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Radiation Island at a discount?
Create a free price alert on this page and KingsPrice will email you when Radiation Island drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows XP/Vista/Win7/Win8 32/64 bit
- Processor: 1.5 GHz or better
- Memory: 1 GB RAM
- Graphics: NVIDIA GeForce 8 or higher, ATI X1600 or higher, Intel HD 3000 or higher
- Storage: 2000 MB available space
- Additional Notes: A video card with minimum OpenGL 3.2 driver is required.
Recommended
- Requires a 64-bit processor and operating system
- OS *: Windows XP/Vista/Win7/Win8 32/64 bit
- Processor: Dual-Core 2.0 GHz or better
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce 8 or higher, ATI X1600 or higher, Intel HD 3000 or higher
- Storage: 2000 MB available space
