The reactor loop
Power generation, heat and waste management, equipment upgrades, and protective shutdowns.
Lab-235: Reactor Control
Real joules. Real heat transfer. A cooling system that starts with a drinking straw.
ANDROID/iOS/FREE TO PLAY
Lab-235 is an incremental reactor game in development. Tap fuel cells to trigger fission and build heat, then keep the core near its optimal temperature as you upgrade from garden-shed science equipment toward a supercosmic energy reactor capable of creating new universes. The shed was not rated for this.
REAL HEAT. QUESTIONABLE HARDWARE.
The radioactivity has to go somewhere.
Ideally not the garden shed.
The reactor follows heat and energy rules you can feel in every decision. The equipment follows a less rigorous hiring process.
01 / FISSIONMake heat
Each reaction adds energy to the core, measured in joules. You have successfully created a problem.
02 / COOLINGMove heat
Water stores it; the pump moves coolant; the radiator sends heat into the air. The starter pump is a drinking straw.
03 / POWERFind the sweet spot
The generator likes a hot core. The safety system has a different opinion. Keep both employed.
Enter the reactor.
GAMEPLAY & SCREENSHOTS
LAB-235 / GAMEPLAY PREVIEW
See the reactor at work.
Tap for fission. Watch the heat rise. Then remember that cooling and waste are also your problem.
Watch on YouTube01 / DEVELOPMENT LOG
The next phase.
Shaped by players.
Lab-235 is an independent project. The first version focuses on getting the reactor loop right, with player feedback helping shape what comes next.
The first-player experience
Clearer first steps, progression balancing, device checks, and the tools to learn from each test.
A bigger laboratory
Research is outside v1. iOS and further features are planned, with scope and timing still to be decided.
02 / HELP SHAPE THE GAME
Your turn
at the controls.
Enjoy making a machine more efficient despite its deeply suspicious parts list? Your first impressions could help make Lab-235 better.
Android first. Poland and Indonesia are planned test markets; dates and access are not confirmed.
EARLY PLAYER TESTING
The doors aren't open. Yet.
Beta sign-ups will appear here when testing is ready. Check back for updates on how to take part.
Request beta access Follow development on DiscordJoining Discord does not grant beta access.
No email address is collected by this page.
03 / A FEW ANSWERS
Before you
step inside.
What kind of game is Lab-235?
A reactor-management game about generating power, balancing heat and waste, and upgrading gloriously improvised equipment. Heat capacity, coolant flow and temperature matter, but you do not need a thermodynamics textbook. It is a game, not an engineering simulator.
When can I play?
There is no confirmed public release date yet. Android testing comes first. Beta availability and joining instructions will be posted in the testing section.
Will it be free to play?
Yes. The planned model is free to play with ads and optional purchases. The exact offers and ad placements are still being developed.
What about iPhone and iPad?
iOS is planned after the initial Android testing. There is no iOS release date to announce yet.
Where can I follow development?
Join the Lab-235 Discord ↗ for progress updates and reactor chat. Discord membership does not include beta access.
How can I share feedback?
Tell me what you expected, where you got stuck, and what would make you return. Include your device and game version if you are reporting a problem. Open the feedback form ↗
Does this page collect my information?
This page has no sign-up form, analytics scripts, or advertising trackers, and it does not store information in your browser. The YouTube player contacts YouTube only after you press play; the separate YouTube link takes you to their site. Your hosting provider may process ordinary request logs. If an external sign-up form is added, its data-use information will be available with the form.