Ingame Editor for Yourland Speak up mod
Sokomine

Edit ingame what NPCs say without server restart

Draigh-uisge (waterdragon)
Homiak

Adds powerful Water Dragons, useful craftitems and Draconic blocks.

Slimes Redo
TenPlus1

Add green and lava slimes to your world.

Mobs Skeletons
TenPlus1

Adds three skeletons to the world.

Mob Mese Monster Classic
TenPlus1

Adds classic Mese Monster.

X Spawners Mobs
SaKeL

Adds mob spawners.

X Spawners API
SaKeL

Primarily adds an API for registering spawner blocks for other mods to use.

Zoonami
isaiah658

Collect and train monsters that can be used in battles.

Zombies4Test ( Reload )
PixelZone

Adding zombies, structures and weapons to your world..

Cthulhu eye boss
GigaByte

Cthulhu eye boss adds

VoxelForge Beta - Hidden Mysteries Update
VoxelForge

Build, Fight, Mine, and so much more. A MineCraft Inspired game, focused on replicating MineCraft as good as possible while keeping performant.

Nether Mobs
Dirkfried

Add monsters and dragons to your nether world.

Forgotten Monsters (Reworked)
PixelZone

Add monsters and bosses to your world...

Stalker
adikalon

Adds a scary and strong monster that lives in caves

Mobs Ethereal Bosses
PixelZone

Adds Bosses in biomes from the "Ethereal NG" and "Mineclonia" mods