Single player

Multiplayer

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Simulator

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steam achievements

accessibility options

save anytime

color alternatives

playable without timed input

mouse only option

custom volume controls

camera comfort

nextfest february 2026

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Spanish (Spain)

Reactonix Sandbox

Linux

Linux is a free and open-source (FOSS/FLOSS) Operating System. In a more precise and complex definition, Linux is an open-source OS kernel on which a large variety of Operating Systems (known as Linux distributions) are built.

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Reactonix is a flexible and enjoyable simulation sandbox where every force is at your command. Create ecosystems alone or with friends, experiment with physics and watch life evolve—or start an apocalypse for the sake of science. Complete freedom to create and destroy is in your hands.

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