Civillis

The mod checks a configurable 240 by 240 by 48 block area around each potential spawn point and rates the civilization present there. It looks for blocks that human presence leaves behind, such as furnaces, beds, campfires, beacons and workstations, and weighs them by the structures nearby. Settled ground gets fewer spawns, and hostile mobs inside civilized zones tend to drift back toward less civilized land, even from the centers of well-established cities.

Protection depends on how much building has happened and how recently players have visited. A small cabin gives modest protection, a lone outpost does not create a fortress, and a thriving city can push monsters back about 90 blocks from its borders. Over time without visits, protection weakens, though a large settlement keeps a 40-block safe zone. Civillis runs on client and server, so the server and every player need it, and it requires Fabric API. Files are published for Fabric, Forge and NeoForge across 20 release versions, 1.20.1 – 26.1.2, under All rights reserved.