TRANSMISSION FROM 71 CITY
The city remembers.
Time doesn’t.
A human, five experimental robots and a quantum cat. Together they explore 71 City, where the next invasion is coming from the future.
It means a lot to know you are waiting.
Add Nuclearphobia to your Steam wishlist. Knowing you want to see where this story goes gives us fresh energy for the work ahead. Thank you to everyone who has already supported us this way.
Visit the Steam pageNEW RELEASE / ATARI XL/XE
Nuclearphobia
Atari Collection
Two adventure games and two reading and quiz programs are now available for Atari XL/XE. Download the collection for your Atari, or play it on your computer with an emulator.
A release on two cassettes is also planned.
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LATEST GAME UPDATE
BUILD b2026.02.07.0007Nuclear Core and Forest.
Two new places to explore.
Build 0007 takes you into Nuclear Core and the night forest. We have added enemies, diving and more places to explore, along with fixes to saving and level loading.
01 / THE WORLD
Something survived.
Something came back.
A reactor failure has left 71 City in a nuclear winter. Beneath its ruined streets lie laboratories, time anomalies and machines that know more than they should. Now another threat is approaching — from the future.
Explore the city, fight your way through and uncover what happened to time. Each member of your unlikely team brings a different ability. How you combine them determines your route through the ruins.
An unlikely team. A shared purpose.
Switch between a human, five robots and a quantum cat. Combine their abilities to overcome enemies and solve environmental puzzles.
Find the right moment.
Watch your surroundings, time your jumps and choose the ability that fits the situation. Sometimes it pays to find another route before firing the first shot.
Follow the anomaly.
Look behind the ruined façades, descend into Nuclear Core and explore the night forest. Each place bears its own traces of the disaster.
02 / FIELD RECORDINGS
A closer look at 71 City.
Screenshots captured in Nuclearphobia. Open an image to see it at full size.
03 / YOUR PLAYER LOUNGE
Step into the city
while we build it.
Want to try Nuclearphobia now? Create an account and download the alpha. Your Player Lounge keeps the current build, controls guide and official artwork together. After playing, tell us what you enjoyed and what needs work.
- The current Windows alpha
- Controls guide in EN, PL and DE
- A direct way to reach the developers
BEFORE YOU ENTER
A few things to know.
What am I downloading?
The Nuclearphobia alpha for Windows. This is a development build: expect bugs and changes to content and performance. The current download is build b2026.02.07.0007.
How do I get access?
Create an account and confirm your email address. Then open your Player Lounge for the game download and the controls guide in PDF.
What does my PC need?
These requirements apply to the current alpha and may change as development continues.
Minimum
Windows 10 64-bit
Intel i3-6100 / AMD FX-8350
4 GB RAM · GTX 750 / HD 7850
DirectX 11 · 1 GB
Recommended
Windows 10/11 64-bit
Intel i5-8400 / Ryzen 5 2600
8 GB RAM · GTX 1050 / RX 560
DirectX 11 · 1 GB
When is the full game coming?
We have not announced a release date yet. Follow the release notes or join the newsletter for news from development.
71 CITY / FREQUENCY OPEN
News from the Nuclearphobia team.
New builds and updates from development. We will write when we have something to show you.