Changelog

Version: 4.0.0
Date: 2026-10-25
  Major Features:
    - New cats, modelled, animated and rendered from scratch: plush, furry and a bit grubby, to suit the factory.
    - Biters are short-haired cats that gallop, pounce, and flop over knocked out with X eyes.
    - Spitters are fluffy long-haired cats that trot and cough up hairballs instead of spitting acid.
    - Worms are cats hiding in cardboard boxes, popping up to spit hairballs; the box bursts when they're knocked out.
    - Nests are cat beds and wicker baskets of sleeping kittens, which break apart when destroyed.
    - Every biter and spitter tier comes in three coats, so a pack doesn't all look the same.
  Features:
    - Cat sounds for every enemy: meows, kitten mews, hisses, growls, chirps, hairball hacks and purrs.
    - Fur puffs instead of blood, and portrait icons for every cat.
  Changes:
    - Requires Factorio 2.1.
    - The enemies' attacks, health and spawning are unchanged.

Version: 3.0.0
Date: 2026-10-24
  Changes:
    - Updated to Factorio 2.1.