Grow your Own Massive Colony with Automation, Defense Structures, Raids and more
Sparse Structures
One mixin mod that makes all structures (including non-vanilla ones) more spread out (essentially making them rarer). Useful for big modpacks with lots of structure mods to make exploration more challenging/less repetitive.
Integrated API
The library mod for the Integrated Structures series
Born in Chaos
Adds a lot of aggressive mobs, with their unique properties that can diversify and complicate your survival. Also adds new structures, equipment, blocks and achievements.
Structory: Towers
Adds immersive, biome-themed towers to the world, for Fabric/Forge/Quilt.
Friends&Foes (Forge/NeoForge)
Adds outvoted and forgotten mobs from the mob vote, expanding on their original concepts and adding new vanilla-like features. The mod includes: Copper Golem, Crab, Glare, Moobloom, Iceologer, Rascal, Tuff Golem, Wildfire, Illusioner, Zombie Horse
Villages&Pillages
Structure mod that brings an exciting twist to Minecraft by introducing hostile and unfriendly pillages, providing a thrilling contrast to the peaceful villages.
Formations Overworld
Formations Overworld adds plenty of new structures to the overworld!
YUNG's Extras (Forge/NeoForge)
Extra structures, features, and vanilla+ content suitable for any modpack
Adds better loot to yung mods structures, an addon to the lootintegrations mod
YUNG's Better End Island (NeoForge) [1.20.4 - 1.21.1 ONLY]
An overhaul of the main End Island where the dragon fight takes place!
Structurify - Structure Control
A structure configuration mod that eliminates the need for datapacks. Spread out structures, prevent overlap, enforce flat terrain, customize size and biomes.
When Dungeons Arise - Seven Seas
Elegant - and likely hostile - vessels lost in the seven seas...