Decay

Decay is an incremental game in which you are tasked with using your trusty particle launcher to create ever-larger and more unstable atomic nuclei, witnessing longer and more complex atomic decay chains and aiming to discover all the isotopes!

Windows

Full release

May 26, 2026

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Decay key art

Media

Decay key art

About This Game

Game Summary

Decay is an incremental game in which you are tasked with using your trusty particle launcher (which may or may not have been found in a dumpster out back of the laboratory) to create ever-larger and more unstable atomic nuclei, witnessing longer and more complex atomic decay chains and aiming to discover all the isotopes!

Configure your particle launcher with the right number of protons and neutrons, then hit launch to see your particle. Earn money for successful experiments, and spend that money on additional upgrades to earn even more money. Earn, spend, earn, spend, earn spend...you know how it works by now.

Gameplay Features

- LAUNCH PARTICLES - Create your concoction of protons and neutrons to forge atomic nuclei in your (very scientific) question to discover new and ever more unstable nuclei.

- UPGRADE YOUR LAB - Unlock a wide range of upgrades to improve your laboratory and expand your capabilities.

- AUTOMATE AND EXPAND - Build additional test chambers and set them to automate multiple experiments in parallel.

- DISCOVER RARE ISOTOPES - With hundreds of isotopes available to be discovered, can you find all the combinations?

- OBSERVE REAL SCIENCE - Study the real decay chains of atomic nuclei. Do you, like all very normal people, have a favourite isotope? See how it is formed, and how it might decay!

Additional Information

- BUY ONCE, PLAY FOREVER - We at Racctuality are committed to a policy that ensures those purchase our games are entitled to any future updates, never locking future gameplay content behind a paywall for a game you have already purchased. So long as the choice is ours to make, paid gameplay DLC will never exist for our games. (The only exception to this rule will be if ever we release purely non-gameplay content, for example concept art or a soundtrack.)

GameHubber interest

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Developer and publisher

Developer:
Racctuality
Publisher:
Racctuality

Quick facts

Release
May 26, 2026: Windows
Last updated
May 14, 2026
Storefronts
Steam
Genres
Simulation
Tags
Not listed
Social styles
Solo
Demo
Not announced

Languages

Languages
LanguageInterfaceFull audioSubtitles
English

Age Rating & Interactive Elements

DEJUS l

Support

Controller & Support

Device support

Family Sharing

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System Requirements

Minimum

Details:
Requires a 64-bit processor and operating system
OS:
Windows 10 64-bit
Processor:
Intel Core i3 series / AMD Ryzen 5 series
Memory:
4 GB RAM
Graphics:
1GB VRAM
DirectX:
Version 11
Storage:
200 MB available space

Recommended

Details:
Requires a 64-bit processor and operating system
OS:
Windows 11 64-bit
Processor:
Intel Core i7 series / AMD Ryzen 7 series
Memory:
8 GB RAM
Graphics:
2GB VRAM
DirectX:
Version 12
Storage:
200 MB available space

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Comments

Read player impressions, questions, and launch notes for this game.