Reliable Replacer

A lightweight utility for replacing one block with another, both during worldgen and afterward. This mod allows modpack creators to effortlessly ban items or restrict their usage using standard JSON files, without the need for complex scripts.

What About Block Swap?

I'm glad you asked! I made Reliable Replacer because of some of my personal frustrations with Block Swap. Here are some reasons to consider switching!

Migrating From Block Swap

Making the switch is easy! Reliable Replacer supports a legacy format designed to work exactly like Block Swap's configuration.

When you first launch the game with Reliable Replacer installed, a swapper.json file will be automatically generated in your config/reliable_replacer folder. This file uses a simple key-value pair format identical to Block Swap.

To migrate, simply copy the "swapper" block from your old configuration into this file:

{
  "swapper": {
    "oreganized:lead_door": "supplementaries:netherite_door",
    "farmersdelight:rope": "supplementaries:rope",
    "minecraft:dirt": "minecraft:stone",
    ...
  }
}

Note: Rules defined in swapper.json automatically inherit default settings (retrogen enabled, replace on player placement, etc.). For more advanced control, use the standard rule format.

Features

A full feature list is available on the Modded Minecraft Wiki.

For information and examples on how to use the mod, please also refer to the wiki.

Quick-Start Example

Create a file called my_replacement.json, or whatever else you'd like, in config\reliable_replacer:

[
  {
    "inputs": [
      "minecraft:dirt"
    ],
    "output": "minecraft:diamond_block",
    "biomes": [
      "minecraft:plains"
    ],
    "min_y": "-30",
    "max_y": "64",
    "apply_to_player_placement": "true"
  },
  {
    "inputs": [
      "minecraft:stone"
    ],
    "output": "minecraft:gold_ore"
  }
]

License