Every effort has been made by the nation's top scientists to close the seven interdimensional Gates of Hell, but one portal remains open. Alone, you must infiltrate the ravaged base, defeat the demon Gatekeeper, and seal the last Hell portal before the undead take over the world.

A remaster of The Plutonia Experiment made in the KEX Engine, community-published mod support, original midi soundtrack or the modern IDKFA version by Andrew Hulshult, improved performance with multithreaded rendering, BOOM source compatibility, accessibility options and translated into eight new languages.