Ocean
StarNinjas

Adds coral reefs, fish, decorative ocean blocks and much more!

PaleoTest
ElCeejo

Adds Prehistoric Fauna and Flora to Minetest Game

Traders
Sokomine

Configurable mobs/NPC which can trade for you.

Wilhelmines People
Liil

Adds the possibility to build living Villages. Trade items for random stuff from your villagers, recruit mounts and warriors.

Gates (wider)
Sokomine

Wide gates for easy walking through and keeping cattle inside

Christmas Decor
GreenXenith

Christmas-themed decor

XConnected
Sokomine

connected nodes like xpanes, xfences, walls

Ocular Networks
PolySaken

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