Using Deltabox Lib Mod on Multiplayer Servers and Clients

Because Deltabox Lib Mod handles both visual rendering and core gameplay registration for dependent mods, you must place it in the right folders when setting up a multiplayer world or dedicated server.

Deciding Between Client and Server

Deltabox Lib Mod is required on both the client and the server whenever you play with mods that depend on it:

• Server-side systems: The library powers block, item, and fluid registration, villager and wandering trader trades, brewing recipes, loot tables, and FastNoise world generation features. A server cannot generate worlds or process items from dependent mods without it.
• Client-side systems: The library provides custom armor renderers, creative tabs, and block presets. Players joining the server need it installed locally so blocks, items, and custom armor display properly and their client registries match the server.

Syncing Your Mod Setup

1. Place the Deltabox Lib Mod .jar file inside the server's mods folder alongside the content mods that require it.

2. Make sure every player joining the server has the exact same library file inside their local Minecraft mods folder.

3. If you host a singleplayer world using Open to LAN, both the host and every joining player must have the library loaded before connecting, or the game will reject the connection due to mismatched registries.