
Sci-fi Tables - 100 Alien Diseases and Maladies for Space Adventures
On Quisicosas since 4 March 2025
Featured in the newsletter of
4 March 2025 (on Substack)
What it is about
The Ultimate d100 Alien Diseases Table: Experience Illnesses from around the Galaxy!
Venture into the Unknown... But Be Wary of What Lurks Beneath the Surface!
The galaxy is a vast, mysterious place—and with it comes a host of terrifying diseases and maladies, unlike anything known to humankind. Some of these afflictions are ancient plagues, lying dormant for centuries, while others are the product of cruel corporate experiments or strange alien biology. From viruses that warp the body to sentient parasites that control their hosts, these 100 Alien Diseases & Maladies will keep your players on edge.
Unnatural Infections – Diseases that bend the laws of biology, turning once-healthy characters into twisted versions of themselves.
Corporate Bioweapons – Malevolent creations, engineered for war, greed, or control, waiting to be unleashed on the unsuspecting.
Ancient Plagues – Forgotten, deadly viruses and bacteria that have slumbered for millennia, now rising again to wreak havoc.
Unseen Horrors – Maladies so bizarre and insidious that even the most seasoned explorers cannot fathom their true nature.
Whether your crew is exploring uncharted planets, unearthing ancient relics, or facing corporate espionage, these afflictions are bound to put them through their most harrowing challenges yet. Prepare for body horror, madness, and mutations that will leave a lasting mark on your campaign—and your players’ minds.
The galaxy is a dangerous place—don’t let your characters get caught unprepared!





