ModsJava
Box of Structures Legendary Monsters Mod (1.21.1, 1.20.1)
Java mod listed for Minecraft 1.20–1.21. File opened and checked on 11 Oct 2026; downloads from the MC Java Mods app on Android.
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Box of Structures Legendary Monsters Mod extends Legendary Monsters with completely rebuilt dungeons and monster nests. This mod replaces the original buildings with bigger, better-looking layouts to make monster hunting more exciting. You can find these new temples and hazardous lairs across your travels in different biomes.
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Features:
- Reworks existing locations from the parent mod into fresh, hand-crafted builds.
- Adds spacious arenas suited for tough combat encounters.
- Blends each building naturally into surrounding terrain and matching biomes.
- Works directly in custom modpacks without extra setup.
Remade Structures:
- Frosted Fjorn: An icy temple overhaul that replaces the old Frostbitten Temple with cold stone halls.
- Mossy Temple: A reworked overgrown site filled with stone bricks and a dedicated boss combat arena.
- Warped Fungus Nest: A rebuilt Nether habitat covered in strange blue fungus blocks.
- Lava Eater Nest: A hazardous lair surrounded by boiling lava pools and fiery terrain.
Screenshots:




Box of Structures Legendary Monsters Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 515401.mcaddon
- Download size: 1.6 MB
- Download link checked 25 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.