Forgotten Hallways
I don't know my version or loader
Adds a new type of underground dungeon to your world, featuring randomly generated hallways created with the use of jigsaw blocks and a large selection of hand-crafted hallways, staircases and intersections containing loot, threats and more!
Sub-versions may show as "incompatible" on the data pack selection screen. You may safely ignore this warning, it means nothing for this pack as long as you are using the correct main version and won't affect generation or your world.
- Uses custom loot tables to randomly generate loot, including different loot tables used for different room types.
- Scattered monster spawners add risk to exploration.
- More valuable treasures can rarely be found within dead-ends.
- Generation frequency weighted roughly the same as mineshafts, with sizes varying greatly to keep exploration interesting.
- Is not 1.18 (or earlier) compatible due to a change in the structuring of generation data packs.
Suggestions for new room types are welcome. More rooms added with each update!
Want to ask questions directly? I don't have a discord server, but you can send me a message request @livelaughlord
Check out this great showcase by skunkmunkee!
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as Forgotten Hallways 1.21.zip
- Download size: 237 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.