Captive biter spawner
A captive biter spawner is a special production building that is initially unlocked by researching captivity (research) with agricultural science packs and is used to produce biter eggs. A captive biter spawner has no module slots, is unaffected by beacons, and cannot be connected to either circuit or logistic networks. A captive spawner cannot be removed by the player or construction robots, but
Ingredients: 10× Biter egg1× Capture bot rocket100× Fluoroketone (cold)15× Uranium-235
Output: 1 per craft → 6/min (single machine, no modules)