Critter

Critters are NPC life-forms with simple behavior patterns. They come in a variety of forms, ranging from the benign to horrific monsters that will destroy you instantly. Critters do not take damage in the same way humans, cyborgs and monkeys do: they are immune to stun, temperature, and atmospheric conditions. They can move through space as if they had a jetpack and can safely stroll through a blazing plasma fire. The only way to harm a critter is through brute force damage or laser fire. Because many hostile critters can quickly overpower a human at close quarters, the latter is generally the only safe way to engage them.

Some critters appear normally on the station, such as the Captain's lovable pet cat Jones. Zombies can crop up when a Wizard or Vampire is around. Telescience can produce critters through teleport accidents, and other beings lurk in the various dark corners of space on other z-levels. Critters can also be spawned by a bored admin, such as the completely indestructible Maecho Mann.