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

Spawners
SaKeL

Adds spawners for mobs, dungeons, temples and ores.

Not So Simple Mobs
TenPlus1

Adds a host of creatures into your world with new weapons too.

Nether Mobs
Dirkfried

Add monsters and dragons to your nether world.

Mob Core
mt-mods

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

Creatura
ElCeejo

A performant, semi-modular, Animal focused mob API

Mobs Animal
TenPlus1

Adds farm animals.

Extreme Randomizer
NO11

Randomises crafting, mob and block drops.

Water Mobs
TenPlus1

Water Mobs for Mobs Redo

Lategame Amulets
Comet

A cohesive progression system that builds on Mobs Monster

Living Slimes
EmptyStar

Adds living slime mobs

Better Randomizer
ThePython10110

Randomizes node drops, mob drops, and crafting recipes

Climbing Pick
lag01

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

MobConf
zeuner

Place, remove and configure Mobs (for now: NPCs) using chatcommands

Mobs Effects
SFENCE

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

Healing Stick
Vasiliy

heals mobs and players

More Danger
Twinsonian

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

Balrog Sword MT 5.4
DragonWrangler

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

Mob Horse
TenPlus1

Adds rideable horse

Sky Mobs
TenPlus1

Sky Mobs for Mobs Redo

Alive AI
AiTechEye

Advanced survivor ai mobs (npc, monsters and more)

The Mob API
TX_Miner

Provides a simple API for mobs

Mob Mese Monster Classic
TenPlus1

Adds classic Mese Monster.

Throwable Bombs
DragonWrangler

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

Mobs Ethereal Bosses
PixelZone

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

Disable Mob Damage for Advanced Trains
Silver Sandstone

Prevents trains from damaging mobs.

Mob Crab (Beta)
Can202

Adds Crabs.

Mob Biome Mapper
Neuromancer

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

Mob Limiter
Neuromancer

removes mobs over max count near players with configurable settings

Wisps
ElCeejo

Adds non-entity mobs called Wisps

Mobs Ghost Redo
TenPlus1

Adds ghosts.

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.

Raids
DragonWrangler

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

S Battlehammer
Stakbox

Adds a battlehammer weapon with high knockback for MTG (compatible only with Mobs Redo API).

Mobkit
mt-mods

Entity API

Large Slugs
jwmhjwmh

Adds node-based slug mobs to your world

Common Mob Interface
Byakuren

A standard modding interface for interacting with mobs