Open Terrain Generator Mod 1.12.2/1.11.2 (OTG) is an advanced world generator which allows you to generate any world you like without any knowledge of Java. OTG is a fork of Terrain Control that solves the instability and basic mod compatibility issues of Terrain Control while maintaining compatibility with its world packs and adding lots of new features and fixes. New things include Biome Dictionary support, a new in game UI allowing simpler single player world creation and multiple worlds with the same preset, a built in map pre-generator with in-game UI, mob inheritance (improves compatibility with mob mods) as well as the ability to spawn entities in structures.

Open Terrain Generator Mod

Whether you are a player, a server owner or want to create your own unique world generation, OTG grants you ultimate control over your Minecraft terrain and the objects, mobs and structures which populate it.


  • Control horizontal and vertical noise, terrain height and volatility.
  • Create new biomes and control the size of biomes, islands and continents.
  • Import custom trees and other objects (BO2 and BO3).
  • Control over mob spawning rules and climate settings per biome.
  • Generate large custom structures with custom mobs and loot.
  • Options for vanilla structures like mineshafts, strongholds and villages.
  • Full control of all blocks placed during world generation: ores, plants, dungeons, ponds and many more.
  • Customizable options for caves & canyons.
  • Visual settings like custom foliage, water and sky colors (OTG client required).
  • Generating biome maps from images.
  • Forge Multi-dimension support (create your own dimension and travel to it via a portal).


Open Terrain Generator Mod Screenshots 1


Minecraft Forge

How to install:

  1. Make sure you have already installed Minecraft Forge.
  2. Locate the minecraft application folder.
    • On windows open Run from the start menu, type %appdata% and click Run.
    • On mac open finder, hold down ALT and click Go then Library in the top menu bar. Open the folder Application Support and look for Minecraft.
  3. Place the mod you have just downloaded (.jar file) into the Mods folder.
  4. When you launch Minecraft and click the mods button you should now see the mod is installed.

Start A World:

  • Minecraft’s world creation screen has been modified by OTG to make managing multiple presets easier.​
  • Simply select ‘Create New World’ then ‘OTG’, then select your world settings and off you go.

Open Terrain Generator Mod Usage

Open Terrain Generator Mod 1.12.2/1.11.2 Download Links:

For Minecraft 1.10.2

Download from Server 1Download from Server 2

For Minecraft 1.11.2

Download from Server 1Download from Server 2

For Minecraft 1.12.2

Download from Server 1Download from Server 2

See more: Open Terrain Generator World Packs