Generator

Generator

A Minecraft chunk generation datapack

by
9.7K Downloads
datapackfabricforgeneoforgequiltoptimizationutilityworldgen
Rent Server with this Mod

About this Mod

This datapack allows you to generate terrain ahead of time and is compatible with realms. This is useful when lots of players are expected to generate chunks on your server, thus causing lots of lag. This will be especially noticeable on servers with slower hardware. This datapack is a solution to that, by pre-generation the terrain the lag will be experienced now, not when you have other players online.

Datapack installation:
If you get a message saying the pack is not supported in lower versions I have marked it as working in, ignore this as it will still work

  1. Locate the datapack folder for the specific world
  2. Drag the Pregenerator.zip file into the datapack folder
  3. Enable the datapack with /datapack enable "file/Pregenerator.zip"

Mod instalation:

  1. Follow the instructions on how to install your prefered modloader (be it Forge, Fabric, NeoForge or Quilt)
  2. Drag the downloaded .jar file into (on windows) %appdata%.minecraft\mods
  3. Launch the world and start playing

Pregeneration:

Start by making yourself a generator admin with:

/tag @s add pregenerator_admin

To set the size in blocks in each direction (north, east, west, south) to pre-generate:

/trigger pregen_size set 200

To start the generation you can either click the green text in chat, or type:

/trigger pregen_start

The generation will stop once your desired size is reached. If you for some reason want to end it early, use:

/trigger pregen_stop

To remove the pregenerator info scoreboard, use

/scoreboard objectives setdisplay sidebar

(Not recommended) Generation speed can be sped up from the default of 1 to e.g. 2 with:

/scoreboard players set Temp pregen_speed 2

You will be told in chat once everything is done

Please report any problems on github or on my discord server.

Available Versions

10release
MC 1.14.4, 1.15, 1.15.1, 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 23w31a, 23w32a, 23w33a, 23w35a, 1.20.2-pre1, 1.20.2, 23w40a, 23w41a, 23w42a, 23w43a, 23w43b, 23w44a, 23w45a, 23w46a, 1.20.3-pre1, 1.20.3-pre2, 1.20.3-pre3, 1.20.3-pre4, 1.20.3, 1.20.4, 23w51a, 23w51b, 24w03a, 24w03b, 24w04a, 24w05a, 24w05b, 24w06a, 24w07a, 24w09a, 24w10a, 24w11a, 24w12a, 24w13a, 24w14a, 1.20.5-pre1, 1.20.5-pre2, 1.20.5-pre3, 1.20.5-pre4, 1.20.5-rc1, 1.20.5-rc2, 1.20.5-rc3, 1.20.5, 1.20.6, 24w18a, 24w19a, 24w19b, 24w20a, 24w21a, 24w21b, 1.21-pre1, 1.21-pre2, 1.21-pre3, 1.21-pre4, 1.21-rc1, 1.21, 1.21.1, 24w33a, 24w34a, 24w35a, 24w36a, 24w37a, 24w38a, 24w39a, 24w40a, 1.21.2-pre1, 1.21.2-pre2, 1.21.2, 1.21.3, 24w44a, 24w45a, 24w46a, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2fabric, forge, neoforge, quilt
March 27, 2026
10release
MC 1.14.4, 1.15, 1.15.1, 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 23w31a, 23w32a, 23w33a, 23w35a, 1.20.2-pre1, 1.20.2, 23w40a, 23w41a, 23w42a, 23w43a, 23w43b, 23w44a, 23w45a, 23w46a, 1.20.3-pre1, 1.20.3-pre2, 1.20.3-pre3, 1.20.3-pre4, 1.20.3, 1.20.4, 23w51a, 23w51b, 24w03a, 24w03b, 24w04a, 24w05a, 24w05b, 24w06a, 24w07a, 24w09a, 24w10a, 24w11a, 24w12a, 24w13a, 24w14a, 1.20.5-pre1, 1.20.5-pre2, 1.20.5-pre3, 1.20.5-pre4, 1.20.5-rc1, 1.20.5-rc2, 1.20.5-rc3, 1.20.5, 1.20.6, 24w18a, 24w19a, 24w19b, 24w20a, 24w21a, 24w21b, 1.21-pre1, 1.21-pre2, 1.21-pre3, 1.21-pre4, 1.21-rc1, 1.21, 1.21.1, 24w33a, 24w34a, 24w35a, 24w36a, 24w37a, 24w38a, 24w39a, 24w40a, 1.21.2-pre1, 1.21.2-pre2, 1.21.2, 1.21.3, 24w44a, 24w45a, 24w46a, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2datapack
March 27, 2026
9release
MC 1.14.4, 1.15, 1.15.1, 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric, forge, neoforge, quilt
December 13, 2025
9release
MC 1.14.4, 1.15, 1.15.1, 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11datapack
December 13, 2025
8release
MC 1.14.4, 1.15, 1.15.1, 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17, 1.17.1, 1.18, 1.18.1, 1.18.2, 1.19, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6, 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10fabric, forge, neoforge, quilt
October 5, 2025

How to Install Generator on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (26.1.2).

3

Install Mod

Open the mod browser in the dashboard and search for "Generator". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

26.1.2, 26.1.1, 26.1 (+102 more)

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Generator server crashes on startup – what to do?

Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.

Is Generator compatible with datapack and fabric and forge and neoforge and quilt?

Generator officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 26.1.2, 26.1.1, 26.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Generator – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Generator consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Generator with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

26.1.226.1.126.11.21.111.21.101.21.91.21.81.21.71.21.61.21.5+95 more