Mineuniverse
Log in Register
Mods

Mappet

Adventure map toolset mod
by McHorse
Claim this project
52,954 downloads
0 likes
Updated Jun 30, 2026
0 hypes

ATTENTION: This mod is no longer being maintained by McHorse. It is now maintained by Chryfi. There are still going to be official updates by Chryfi and other contributors and there have been task forces that are investigating on porting it. If you also want to contribute to official updates, or to the porting effort, please join the official McHorse's Discord server, so we can communicate with you. Check out the source code.

Mappet

CurseForge pageGitHubWiki

Mappet is a Minecraft mod (for 1.12.2 exclusively) that is designed as a tool set for far superior adventure maps than possible with vanilla. It's also possible to use Mappet for scripted roleplays, and, to some extent, in Minecraft machinimas.

Special thanks to Andruxioid for the mod's name, Jvonlins, Centryfuga and CustomNPCs Forever Vkontakte group for testing, suggestions and directing!

Install

Install Minecraft Forge, download the latest stable version of jar file for available Minecraft version. Also install following mods: McLib, Metamorph, and Blockbuster. Put it in minecraft's mods folder, and launch the game.

After that, Mappet mod should be installed and will appear in Minecraft's mods menu. If Mappet didn't appear in the mods menu, then something went wrong.

Scripting

Mappet features scripting API, which allows program game logic within Minecraft using JS (ES5 by default) or Kotlin scripts. For more information, visit Mappet wiki's page about scripts.

JavaScript (ES5)

For JS scripts to work, you would need to get Nashorn jar (which is located in Java's (JRE/JDK) home folder by path lib/ext/nashorn.jar) into Minecraft's mods folder.

If you're already If you're already using CustomNPCs mod with Mappet, you don't need to do this. If you use GraalVM instead of Oracle's Java or OpenJDK, scripts should work without Nashorn due to GraalJS.

Kotlin scripts

For Kotlin scripts to work, you would need Mappet 0.3+ and to download this fat jar and place it in Minecraft's mods folder. By default, scripts are assumed to be using JS.

To make your script use Kotlin scripting, you need re/name your script ending with .kts, then instead of JS scripting engine, Kotlin scripting would be used.

Resources

At the moment, the mod is still in development, however, here is a playlist of videos that cover some Mappet mod's features:

Alternatively, there is an almost complete wiki describing all Mappet's mechanics. If you'll have questions about the mod, you can also join Mappet's Discord server.

No files available for download.

More from McHorse

Chameleon (Metamorph add-on)
98,377
Commander
7,030
McHorse's McLib
4,823,540
Metamorph
4,358,650
Aperture
306,540
Uniforms
2,444

You Might Also Like

Akashic Tome
The Book of Books. Store every documentation book in one.
99,946,307
Hwyla
Hwyla (Here's What You're Looking At) is a UI improvement mod aimed at providing block information directly in-game. It is also a fork of Waila.
99,359,372
Server Country Flags
Shows the flag of where a server is located.
9,736,695
The One Probe
More immersive alternative for WAILA
96,682,345
Better Ping Display [Fabric]
Displays ping in milliseconds in the player list in a configurable way
9,637,726
Provi's Health Bars
Adds sleek and expansive health bars / damage indicators.
994,419