When I entered a strange building, I fell into a basement and I ended up fighting a hostile bio-organic creatures. Also, sucks to be Dominatum Trooper when such plague happens.

Cosmic Cordyceps - fungal plant-like bio-organism with traits of a bug hive. Specialises in plant infestation.

Bio-crystal Nebula - artificial. Specialises in polar, crystal and spiritual capabilities.

Alien Rotmold - artificial. Result of sudden combination of unidentified xeno-bio-organism with various junks.

Galva-Biome - artificial. Mutated nanobots that can mimic other, the real bio-organisms.

Neurosugar Hive - artificial. Candy-like bio-organism that specialises in literal food infestation.

Xylophagus - eldritch bio-organism. Specialises in aquatic capabilities.

Ashtrayed Meatguard - tumor-like bio-organism. Dependent on ecosystem and a gathered materials.

Ancient Anthogen - oldest most primitive bio-organism. Thought its capable of infestations, it relies more on pure consumptions from which it adapts.

Beastleap’s Slave Bio-organism - formerly pure, now forcefully controlled and enchanced with cybernetic parts by Beastleap Program. Similiar to Galva-Biome Project with its varieties.

Spatial Bio-Ink Organism - bio-organic visage of a pure cosmic darkness untold.

Demonic Bio-Organism - artificial. Taken and modified by Hell Undergrounds and Chaos Army to serve the will of Demon Lord and Demonic Chaos Deities.