balrog (flux's fork)
fluxionary

adds balrogs.

mime (flux's fork)
fluxionary

adds a monster mimicking its surrounding nodes.

Zombies4Test
DuckGo

Adds zombies and stuff to your world

Epic Combat
hilol

Fight your enemies with various weapons and protect yourself with distinct sets of Armour, whilst sharpening your skills in PVP and PVE.

Forgotten Monsters
DuckGo

Monsters and Bosses...

NodeCore SeaLife
Winter94

Adds Biodiversity to NodeCore Seas & Rivers

Power Rangers Modpack
LC Creations

Adds power rangers and an API to create your own.

Wilhelmines People
Liil

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

Native Villages
Liil

Adds villages of native people to the world.