Dimension Tickrate

Each dimension can be given its own target TPS (ticks per second) on a NeoForge server running 1.21.1. The Overworld keeps the vanilla rate of 20 TPS, and a machine dimension can be set to 10 TPS, for example. Dimensions are processed independently, so lowering the rate in one does not slow gameplay in the others. Resetting a dimension restores vanilla behavior at 20 TPS, and the configured list of dimensions can be displayed on the server.

The core idea is to isolate heavy server load in dedicated dimensions. Server owners can create machine or industrial resource dimensions where players place large automation systems, pipe networks, mob farms and automatic production lines, which are the high-frequency ticking block entities that cost the most. Reducing their tick rate lowers the load they put on the server without touching commonly used dimensions such as the Overworld and the Nether. Even in dimensions running at a reduced rate, the mod keeps player updates arriving at a low frequency, so nobody is stuck in one spot.

Dimension TPS settings are stored in the world's persistent data and survive a server restart. Installation on a dedicated server needs only the server file. Singleplayer and LAN worlds run an integrated server, so the mod has to be installed on the local client as well.