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FTBChunks - Gristlayer Overlay

by SnurfeShift

Gristlayer Overlay, an addon for FTBChunks, draws Grist Layers areas on the chunk map, and it needs both Minestuck and FTB Chunks installed.

NeoForgeClient and serverAll rights reserved1.21.1

What it does

The addon adds a custom overlay to the FTB Chunks map that shows the Grist Layers areas. These areas are laid out much like slime chunks: each chunk is assigned a layer type, and the overlay colors the chunks so the type is visible at a glance. Imp spawn positions are marked on the map as well.

Because the overlay is built on the custom overlay support already present in FTB Chunks, the addon works in the same style as other FTB Chunks overlays. Its transparency can be adjusted in the FTB Chunks configuration. The map must be refreshed after enabling or disabling the grid, or after switching the overlay, and the first time through the setting may need to be repeated until the map is disabled and enabled again.

The mod requires Minestuck and FTB Chunks, and it is needed on both client and server, since the client requests Grist Layer information from the server. It is published for NeoForge 1.21.1 only, with 1.2.1 as the latest file. The code is not open source; it is released under All rights reserved.

Key features

  1. Grist Layers overlay

    Chunks are colored by their Grist Layers type, drawn over the FTB Chunks map in the same way as slime chunks.

  2. Imp spawn markers

    Positions where imps spawn are marked on the map, so players can see where to expect them.

  3. Adjustable transparency

    The overlay's transparency is set through the FTB Chunks configuration file.

  4. Map refresh on toggle

    The map is refreshed when the grid is enabled or disabled, so the overlay stays in sync with the chosen view.

Compatibility

Latest build for each game version and loader.

1.21.11.2.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Who it’s for: Minestuck players who use FTB Chunks for claims and map navigation, and server owners who run both mods together.

How it compares

Full comparison

Minestuck Compat is an open source addon for NeoForge 1.21.1 that is optional on the server and client, and it is released under the GNU Lesser General Public License v2.1 only. Minestuck Dungeons is a NeoForge 1.21.1 mod that both sides need, and it is released under All rights reserved. Gristlayer Overlay also needs both sides and is under All rights reserved, but its job is the FTB Chunks map overlay rather than dungeon or compatibility content.

ModLoadersGame versionsEnvironmentUpdated
FTBChunks - Gristlayer OverlayNeoForge1.21.1Client and server2026-03-07
Minestuck CompatNeoForge1.21.1Client or server, optional2026-05-22
Minestuck DungeonsNeoForge1.21.1Client and server2025-10-21

Questions

Does Gristlayer Overlay need Minestuck?

Yes. The mod requires Minestuck and FTB Chunks, and both must be installed with it on NeoForge 1.21.1.

Does the server need Gristlayer Overlay?

Yes. Installation covers the server and each player's game.

Why does the overlay sometimes need a map refresh?

The map must be refreshed after enabling or disabling the grid. Until the map is disabled and enabled again, the first setting may not apply.

Can the overlay be made more transparent?

Yes. Transparency is an option in the FTB Chunks configuration files.

What the author says

Custom addon mod that adds a custom overlay for FTB Chunks, featuring "Grist Layers" from the mod minestuck. Grist Layers are areas of the map, similiar but not entirely working like Slime Chunks that determine which type of imps can be spawned on a block position. A transparency option is given in FTB Chunks…
SnurfeShift, on the Modrinth page

Official listing

Owner
SnurfeShift
Published
2025-09-24
Updated on Modrinth
2026-03-07
Facts verified
2026-10-15
Open on ModrinthCompare