Cave Maps (Better Nether Map Port)
Anyone who has spent an hour wandering the Nether knows the pain of a useless map. Vanilla cartography simply refuses to cooperate in cave dimensions, leaving you to navigate by memory and torch placement. Cave Maps (Better Nether Map Port) solves that problem by bringing Jummit's Better Nether Map functionality to Forge, giving you working maps in the Nether and any other cave-like dimension you configure.
What This Add-On Actually Does
At its core, this mod changes how maps determine their Y level. In the Overworld, that is straightforward, but in dimensions where the terrain stacks vertically, a standard map has no idea which layer to draw. This port gives you three distinct map modes, each selectable in the config file:
- Fixed Mode: Every dimension gets a configurable Y value, and all maps created there lock to it. Predictable and consistent.
- Snap Mode: Each dimension holds a list of Y values. A new map snaps to whichever listed value sits closest to your position when you create it.
- Variable Mode: Maps display the Y level they were made at. Maximum freedom, though maps will not line up perfectly with each other.
You can also set a minimum Y level per dimension and apply a height modifier when creating a map. That modifier is genuinely useful, since placing it a few blocks above your head gives you a clean overview of your immediate surroundings rather than a slice through solid stone.
Alternate Map Items and Crafting
Cannot settle on one mode? The mod lets you independently enable three alternate map items, all craftable from blank maps. Each one corresponds to a mode, so you can keep Fixed Mode as the default for ordinary empty maps while still crafting Snap and Variable variants. Apart from their Y behavior, these items work exactly like normal maps.
Overworld Cave Mapping in 1.18+
On Minecraft 1.18 and newer, you can allow alternate map types in the Overworld to chart caves. Vanilla maps continue to function normally, so nothing breaks if you prefer the classic approach for surface exploration. This makes the add-on useful well beyond the Nether, especially on servers with sprawling underground bases.
Supported Versions and Loaders
Cave Maps (Better Nether Map Port) for Minecraft is built for Forge, which is the key difference from the original Fabric release. Version support tracks the modern 1.18+ era of the game, where the reworked world height made cave mapping far more relevant. If you run a Forge modpack centered on exploration or technical play, this fits in without conflicts.
If you would rather skip manual file management entirely, the foxygame.net launcher handles Cave Maps (Better Nether Map Port) through a one-click install from its add-on catalog, so the correct build lands in your mods folder automatically.
Configurability and Quality of Life
The config file is where this mod earns its keep. You can add your own dimensions and configure fixed and snap points independently, which means modded dimensions get proper map support too. Just follow the format shown in the config, since malformed entries will be ignored.
There is also an option to disable the random spinning of the player location marker. It sounds minor, but a stable arrow makes underground navigation noticeably easier when you are trying to follow a tunnel back to your portal.
How to Install
Getting started is straightforward:
- Confirm you are running a Forge profile on a supported 1.18+ version.
- Place the mod file in your mods folder alongside Forge.
- Launch the game once to generate the config, then exit.
- Edit the config to set your dimensions, Y values, and preferred default mode.
- Reopen the game and craft a map to test your settings.
When you download Cave Maps (Better Nether Map Port), keep in mind that it is a port, so credit belongs to Jummit for the original design. The Forge adaptation preserves that work while opening it up to a different modding audience.
Final Thoughts
Underground exploration in Minecraft has always punished players who like to know where they are going. This add-on removes that punishment. Whether you want strict fixed-level maps for a Nether hub project or variable maps for casual caving, the three-mode system covers both extremes, and the alternate map items let you mix approaches in a single world. For Forge players on 1.18+, it is an easy recommendation.