More posibilities how to kill mobs/players
SFENCE

Add more posibilities how to kill mobs and/or players, like traps, throwable TNT, etc.

Traders
Sokomine

Configurable mobs/NPC which can trade for you.

Visual Harm 1Ndicators
Mantar

HP bars for mobs/players

Moblib
LMD

Low-level high-performance entity library

Mob Core
mt-mods

A Mob API meant to expand upon mobkit and bring easy to use features for creating new Mobs.

3D Armor Mobile
LandarVargan

Adds a command to bring up a formspec that allows mobile users to put on armor

Mobs Effects
SFENCE

Provides predefined attribute effects without apply logic for mobs based on Mobs Redo API, modifying movement, combat, and behavior attributes

Skeleton
AntumDeluge

A skeleton mob.

MFSM Multiple Finite State Machine
Sumi

Allows for multple states to be active, while maintaining typical state machine behavior. Good for gamestate and mobs.

Disable Mob Damage for Advanced Trains
Silver Sandstone

Prevents trains from damaging mobs.

Wilhelmines Marinara Mobs
Liil

adds mobs to the marinara oceans

Mob Biome Mapper
Neuromancer

Allows mobs to spawn in biomes that don't support them.

Zoonami 3D Mobs
isaiah658

Adds 3D monster mobs to Zoonami.

Grave
ElCeejo

Adds an eerie biome with multiple mobs.

Raids
DragonWrangler

Allows server owners or server admin to start mob raids to attack settlements or players

Mobs Animal
TenPlus1

Adds farm animals.

Balrog Sword MT 5.4
DragonWrangler

allows those using the old mobs balrog mod to have balrog swords

Climbing Pick
lag01

Tool to climb, double jump, and do good damage to mobs.

Alive AI
AiTechEye

Advanced survivor ai mobs (npc, monsters and more)

Large Slugs
jwmhjwmh

Adds node-based slug mobs to your world

mime (flux's fork)
fluxionary

adds a monster mimicking its surrounding nodes.

Better Randomizer
ThePython10110

Randomizes node drops, mob drops, and crafting recipes

Mob Limiter
Neuromancer

removes mobs over max count near players with configurable settings

Mobs Skeletons
TenPlus1

Adds three skeletons to the world.

Throwable Bombs
DragonWrangler

adds a cave expansion tool, a throwable tnt stick, a throwable smoke bomb, and a mob throws tnt

Mob Horse
TenPlus1

Adds rideable horse

Wisps
ElCeejo

Adds non-entity mobs called Wisps

Nether Mobs
Dirkfried

Add monsters and dragons to your nether world.

Cube Mobs
Xanthus

Adds various cube mobs with different abilities using mobkit.

GetName
kevins

Adds an API and tool to generate random names for NPCs, mobs, and places.

Slimes Redo
TenPlus1

Add green and lava slimes to your world.

Water Mobs
TenPlus1

Water Mobs for Mobs Redo

Creatura
ElCeejo

A performant, semi-modular, Animal focused mob API

Minec##ft Items and Mobs for Mineclonia
michi16bit

Add minecraft mobs and items

More Danger
Twinsonian

Scaling difficulty multiple games/mob apis. Based on the difficulty mobs will have faster movement speed, more damage and more health.

Mobs Monster
TenPlus1

Adds many types of monster.

Lategame Amulets
Comet

A cohesive progression system that builds on Mobs Monster

Extreme Randomizer
NO11

Randomises crafting, mob and block drops.

Spawners
SaKeL

Adds spawners for mobs, dungeons, temples and ores.

Tortou
LibraSubtilis

Turtle graphics, hyperloop travelingsystem and cubic mobs.