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Client and Server Installation

BetterRailwaySystem supports both singleplayer and dedicated multiplayer, but multiplayer requires a consistent setup.

Client Installation​

  1. Install Fabric Loader for Minecraft 1.21.1.
  2. Put the BetterRailwaySystem jar into the client mods folder.
  3. Put Fabric API into the same folder.
  4. Put Cloth Config into the same folder.
  5. Launch the game and verify the mod loads without errors.

Dedicated Server Installation​

  1. Prepare a Fabric server for Minecraft 1.21.1.
  2. Put the BetterRailwaySystem jar into the server mods folder.
  3. Add Fabric API.
  4. Add Cloth Config.
  5. Accept the Minecraft EULA and complete the normal Fabric server setup.

Important Multiplayer Rule​

If you want the full feature set, both sides should run the mod:

  • Client only gives you the local mod files, but server-backed features will not work on an unmodded server.
  • Server only is not enough, because clients also need the mod to render UI, overlays, and receive synchronized assets correctly.

Not Required on Servers​

ModMenu is optional for clients and is not required on dedicated servers.