WorldStages

Stages are attached to the world itself, so once a stage is locked every player in that world meets the same restriction. Locked blocks and interactables cannot be placed or used, do not react to redstone, and cannot be pushed by pistons. Locked tile entities stop ticking, so a locked machine does not work at all. The lock only prevents interaction; a daylight sensor, for example, can still be locked without losing its basic behavior. Config files control which blocks and tile entities are disabled behind each stage, and a stage can also cancel entity interaction, so blocks no longer apply effects such as fall damage bouncing or slowing down walking.

Stage changes are made with the worldstage command, which supports add and remove on the world, lists the active stages, and reloads the configuration. Auto-completion covers the command. Because stages apply to the world, automation, fake players and addons can respect the same locks, which suits modpacks that gate progress through machines. The mod is open source under the GNU Lesser General Public License v3.0 only.

WorldStages needs MixinBooter to run. It is built for Forge 1.12.2 only, and the latest file, 1.1.3, was published on 2025-08-02. The mod is client and server, so the server and every player need it.