Vault Mapper

A mod that adds an on-screen minimap of the vault you're in for the Vault Hunters 3rd Edition modpack.

3.0K Downloads

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About this Mod

Vault Mapper

This is an unofficial add-on mod for the Vault Hunters 3rd Edition modpack

Do you have trouble navigating the vaults and often get lost? Are you tired of having to remember the exact path you took in a vault? This mod is for you!

This mod adds an on-screen minimap showing all the rooms you have explored in the vault you're currently in as well as all special rooms added by using inscriptions on your vault crystal. Plus, there are even more features that we are planning to add in the future.

The mod is currently fully client-sided, however you should get permission from server admins and other players before using it on a server.

Development Discord Server: https://discord.gg/jq47BD9hS2

Available Versions

v1.10 - Vault Globe and PvP Vault Supportrelease

MC 1.18.2forge

December 13, 2025

v1.9 - Server-Side Room Datarelease

MC 1.18.2forge

September 25, 2025

v1.8.2 - Fixes and Updatesrelease

MC 1.18.2forge

September 11, 2025

v1.8.1 - Performance Improvements, Room Outlines, Player Arrowsrelease

MC 1.18.2forge

June 7, 2025

v1.8 - Data Driven Icons, Vault Viewer, Better Room Detectionrelease

MC 1.18.2forge

May 5, 2025

How to Install Vault Mapper on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.18.2).

Install Mod

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

Compatibility

Mod Loaders

forge

Minecraft Versions

1.18.2

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Vault Mapper server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.18.2). You can switch loaders with one click in the panel.

Is Vault Mapper compatible with forge?

Vault Mapper officially supports forge for Minecraft 1.18.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Vault Mapper – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Vault Mapper 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.