PxRP embeds a hot-swappable Lua runtime directly into the Fabric server lifecycle. No need to compile Java mods just to handle server-side logic, custom commands, or basic event manipulation. Write your logic in Lua, save the file, reload instantly, and see the changes live.

Right now, I am using PxRP to develop a complex, fully Vanilla custom Roguelike server. If an action felt clunky or required too much boilerplate during my own design phases, I changed the core engine to fix it. The result is a development loop explicitly streamlined for rapid, practical deployment.

Key Features

Simple command registration: They hook straight into Minecraft's native Brigadier system. You get tab completion, type validation (block_pos, player, int, etc.) with a simple API.
Fast Hot-Reloading: Running /pxrp reload completely reloads the Lua state in memory within milliseconds. Registered commands are hot-patched into the live dispatcher without restarting the server.
Simple API:

Some Snippets

1. Commands

-- Simple registration register("pay <amount:int> <target:player>", function(ctx, amount, target) local bal = ctx.player.data.balance or 100 if bal < amount then mc.broadcast(ctx.player.name .. " has insufficient funds.", true) return end ctx.player.data.balance = bal - amount target.data.balance = (target.data.balance or 0) + amount mc.broadcast(target.name .. " transferred " .. amount .. " coins to " .. target.name) end, "pxrp.economy")

2. Events & cancellation

mc.on("player_block_break", function(player, pos, blockId) if blockId ~= "minecraft:white_wool" then return false -- Cancels the block break if it's not a wool block end end)

3. Structure Placement

register("paste <id:text>", function(ctx, id) local s = mc.loadStructure(id) or mc.loadStructureFile(id .. ".nbt") if not s then return mc.broadcast("Structure not found!", true) end s:place(ctx.player.world, ctx.player.pos, { rotation = "CLOCKWISE_90", mirror = "LEFT_RIGHT", -- Iterate structure entities on_entity = function(entity, pos) entity.customName = "Summoned " .. entity.type entity.health = 50 end }) end)

Installation & Requirements

Install PxRP on your Fabric server.
The first boot generates a config/pxrp/demo.lua configuration file containing basic usage examples.
Edit your scripts and use /pxrp reload to apply changes instantly.