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!

Developer: Racctuality.

Tags: Solo, Idler, Simulation, Science.

Steam reviews: 4 user reviews (100% of 4).

Price: $3.99.

Released 2026-05-26.

Decay on Game Goose · Steam store page

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