Nether Mobs
rael5

Add monsters and dragons to your nether world.

Ocular Networks
mt-mods

Draw power from the world, and use it to power machines and tools.

Cube Mobs
Xanthus

Adds various cube mobs with different abilities using mobkit.

PaleoTest
ElCeejo

Adds Prehistoric Fauna and Flora to Minetest Game

Grave
ElCeejo

Adds an eerie biome with multiple mobs.

Alive AI
AiTechEye

Advanced survivor ai mobs (npc, monsters and more)

Voxel Dungeon
Noodlemire

This is a recreation and adaptation of an Android rogue-like game, Pixel Dungeon by Watabou.

Agon
1248

Fight against some monsters!