Lifeless World

When the gamerule is enabled, most mobs and other entities no longer appear, so resources become scarce and survival depends on what the player can find. Only a short list of essentials keeps spawning, including blazes in the Nether, which remain the only source of blaze rods. Enabling the gamerule does not remove an existing world's entities, and the default setting leaves vanilla behavior unchanged.

The gamerule can be set at world creation through the world creation screen, where a option labeled entity spawn can be switched off, or on an existing world with a command. Toggling it on an existing world removes the entities already present. The mod is server-side only, so players join without installing anything, and the server needs it for the gamerule to work.

Because items and entities cannot punch trees, wood has to come from chests: spruce logs in taiga villages and dark oak logs in pillager outposts. Obsidian turns up in loot chests inside villages and ruined portals, while iron ingots are the material needed for the bucket that builds a portal. The mod is open source under the CC0 1.0 Universal license and is published for 1.21.5 only.