Grim Kingdoms: Lost structures & ruins
Adds Castles - Unique vanilla mobs/ hidden items. Free Minecraft Java mod for 1.21.8, 1.21.5, 1.21.4.
I don't know my version or loader










Grim kingdoms: Lost structures & ruins adds close to 100 handmade structures, fantasy and medieval forts, citadels, castles, towers, ships, huts, and 2 kingdoms to your Minecraft world, inhabited by vanilla, and custom vanilla mobs, including feral white rabbits, gnomes etc...
Vanilla loot tables + hidden special items
All built using vanilla features only
no custom blocks or entities included (FEEL FREE TO ADD TO ANY MODPACK)

Fully compatible with:
- Biomes O' Plenty (biomesoplenty)✨
- Nature's Spirit (natures_spirit)✨
- Oh The Biomes We've Gone (otbwg)✨
- Terralith (terralith)✨
- Regions Unexplored (regions_unexplored)✨
- William Wythers' Overhauled Overworld (wwoo)✨
- William Wythers' Expanded Ecosphere (wwee)✨
- No Man's Land (nml)✨
LIST OF ITEMS: (doesnt include 2.0 items)
https://docs.google.com/spreadsheets/d/10QhMcOgmwVrPgZt2YgFWer8d1rZeGO3z0RyjHYkLWOo/edit?usp=sharing

CASTLES FOR MORE BIOMES
- Ships as grim-kingdoms-lost-structures-ruins-2.0.3.jar — drop this file into the mods folder
- Download size: 9.8 MB
- Download link checked 27 Aug 2026 — working
These come from our own check of the pack file, not from the source page.
