With the death of Bukkit, MythicMobs will be ported over to Sponge once it is stable.

What is MythicMobs?

MythicMobs allows server administrators to create custom variants of mobs.

These variants can include:

  • Mob Skills: Giving mobs custom skills with powerful conditionals and delays, based on a robust system of triggers and/or timers
  • Mob Attributes: Modifying all mob attributes such as health, damage, speed, follow and combat range
  • Special Effects: Allowing mobs to use custom sounds, particles, and special effects
  • Equipment: Setting equipment and creating custom items with attributes and drop tables.
  • Damage Modifiers: Change how damage affects mobs so they can be immune to drowning, take half damage from arrows, be healed by fire, etc.
  • Mob Spawners: Creating powerful custom Mob Spawners to spawn your Mythic Mobs at specific locations, with optional timers, conditions, attributes, cooldowns, etc!
  • Spawning Control: Set your custom mobs and bosses up to spawn randomly in different areas of the world, based on any number of conditions you can specify. You can replace natural spawns completely!
  • Mob Levels: Allow mobs to scale in level and increase in power based on where and how they spawned, having scaled health, damage, and more abilities as they level!
  • Threat Tables: (v1.1) Allow mobs to use Threat Tables, granting increased power and control over their targeting behaviors and causing mobs to behave more like those in RPGs.
  • Mob AI Controls: (v1.1) Allows you to modify mob AI goals, including adding new AI goals found only in MythicMobs. Let zombies open doors, have friendly skeleton guards that fight skeletons from other mob factions, and more!
  • Mob Factions: (v1.1) Allow mobs to be a part of factions! Works with the previously mentioned AI Controls so you can have mobs that will fight other factions of mobs, help players, and more!
  • Plugin Compatibility: Integration with a wide variety of popular plugins!
  • Much more to come!


MythicMobs' commands can be accessed in-game using the /mythicmobs or /mm commands.

After running your server with MythicMobs for the first time, you can find all sorts of example files in the MythicMobs folder to get you started with every aspect of the plugin. Mobs, items and random spawning are all handled through .yml files placed in the respective sub-folders. After editing, you can use /mm reload to reload the plugin, and the /mm mobs command to access your newly-created mobs.

For information on how to configure and use MythicMobs, see the Plugin Manual!

Upcoming Features

Upcoming Features included in the next version will be posted in the Full Changelog.

Future major additions include:

  • Spawner Scaling so that spawners and their mobs can scale their mob level based on the number of players nearby.
  • World Scaling so you can define various conditions for how mobs will scale in level in your world

Help & Questions


  • IRC Chat: #mythicmobs @
  • Official Server:

If you need additional help, please make a post in the Support section of the Plugin Forums. I will sometimes help people who post in the comments, but that is not reliable as I will not always see all the comments being posted. You can also find me in #mythicmobs on, but I am usually AFK and may not be around to respond immediately.

If you'd like a demonstration of what MythicMobs can do, I can occasionally be found on the Minecraft survival server, which is a private server I use for testing my plugins. You can ask mods on there to spawn some of my more complex bosses to demonstrate the plugin's capabilities, but you will probably get obliterated. Mods on will generally not provide support for MythicMobs in general.

Development Builds

Development builds for MythicMobs can be found at my continuous integration server, here:

Please note that development builds have untested features, and while I do not believe they will damage your server in any way, I can make no guarantees about it. They could potentially alter and/or break your previous MythicMobs configurations and may contain bugs and unfinished features. Please make sure you read changelogs fully. Builds that you download which have not been approved by BukkitDev are used at your own risk.


  • mythicmobs.admin - Gives access to all MythicMobs commands.


More info coming soon!


Metrics & Updates

MythicMobs periodically checks BukkitDev for updates (as of v0.7.5) and will try to notify Ops and the console if a new update is available. This can be disabled in the configuration by setting general.check-for-updates to false.

MythicMobs also sends some simple statistics about usage to Metrics can be disabled in the configuration by setting allow-metrics to false.



Helpful tutorial by ngutun

Special Thanks

I'd like to give a special thanks to:

  • adw123: for all the hard work documenting things!
  • spyermusic: for the custom logo!

and also to everyone who helps by submitting feedback, bug reports, and helping out with testing!


All types of help are greatly appreciated! If you'd like to help out, please consider posting your suggestions on the forum, helping me test for bugs, and helping others with support issues!

If you'd like to support MythicMobs' continued development, please consider donating! Each donation ensures I can spend more time adding features and less time doing other things to keep a roof over my head! Every dollar helps. :D


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  • Avatar of IamChaoz IamChaoz Oct 22, 2014 at 19:27 UTC - 0 likes

    @publicg: Go

    Yeah I have issues with debuff timers not resetting even when players are hit again. A potion effect doesn't reset unless the potion effect isn't on the player. Have no idea how you fix this.

    Last edited Oct 22, 2014 by IamChaoz

    I was the biggest fucking idiot on this planet once.

  • Avatar of publicg publicg Oct 22, 2014 at 17:37 UTC - 0 likes


    - leap ~onDamaged 0.2

    generates a ton of error messages

    Would it be possible to specify knockback power to volley?

    consider this skill

    - potion 0:WEAKNESS:200:2 ~onAttack

    would it be possible to reset the duration of weakness (or any other buff or debuff) on the target  when struck by that skill, instead of applying weakness only if the target does not have the weakness debuff?

    Last edited Oct 22, 2014 by publicg
  • Avatar of publicg publicg Oct 22, 2014 at 03:12 UTC - 0 likes


    damage skill can kill you even on creative (also on ver 0.12.2). it is certainly a bug the only other damage i know that can kill creative players is the void danage


    try a smaller duration. potion buffs cannot exceed 10^6 seconds or 10^6*20 ticks.

    Last edited Oct 22, 2014 by publicg
  • Avatar of sama2010 sama2010 Oct 22, 2014 at 00:55 UTC - 0 likes

    the skeleton boss killed me while i was in creative

  • Avatar of publicg publicg Oct 21, 2014 at 04:39 UTC - 0 likes


    i wanted to update to spigot 1653 but skillapi will not run on it. I was waiting for the skillapi author to update to 1.7.10. If I use spigot 1543 (mc 1.7.9r01) mcore and factions have lots of problems, which probably explains that Cayorion updated mcore to 1.7.10 shortly after he released it for 1.79

    I guess i cant play with AI controls yet

  • Avatar of IamChaoz IamChaoz Oct 21, 2014 at 02:29 UTC - 0 likes

    @Xikage: Go

    Tried it. Didn't make any difference.

  • Avatar of Xikage Xikage Oct 21, 2014 at 02:25 UTC - 0 likes

    @IamChaoz: Go

    You don't need the $ in front of mob names. That's a compatibility layover from EpicBoss that I don't intend on using for everything and only works for the summon skill.

    Last edited Oct 21, 2014 by Xikage

    Author of MythicMobs! | Come visit us on Minecraft @

    Need a quality custom plugin for your server? I offer development services for pizza, gold, or other negotiables. PM to inquire about custom plugin development for your server!

  • Avatar of Xikage Xikage Oct 21, 2014 at 02:23 UTC - 0 likes

    @publicg: Go

    Right now 1.7.9 is the only version that supports the AI because previous versions (even 1.7.5) had some AI changes in vanilla Minecraft that make backwards-compatibility a pain. I will try to add backwards compatibility in the near future but I can't make any promises.

  • Avatar of IamChaoz IamChaoz Oct 21, 2014 at 02:03 UTC - 0 likes

    Could you redesign the projectile skills? Mobs always miss with their projectiles when firing because the projectiles are fired in the direction that their body is facing not where they're looking.

    EDIT: The potionmobs skill isn't working for me. When the UnleashTheHounds skill is used, the hounds spawn and the potion breaking sound plays, but the hounds are not given their buffs.


      Health: 50
      Damage: 6
      Mobtype: zombie
      Display: '&cBeastmaster'
      Faction: Beastmaster
      - summon $Hound:5:1 >0 1 ~onSpawn
      - skill UnleashTheHounds =25 1
        MovementSpeed: 0.3
      - LeatherHat:4
      - 0 clear
      - 1 float
      - 2 meleeattack
      - 0 clear
      - 1 otherfaction
      - 2 hurtbytarget
      Health: 15
      Damage: 4
      Mobtype: wolf
      Display: 'Hound'
        MovementSpeed: 0.35
        Options.Tameable: false
        Options.Angry: true
      Faction: Beastmaster
      - 0 clear
      - 1 float
      - 2 meleeattack
      - 0 clear
      - 1 otherfaction
      - 2 hurtbytarget


      - msg 50:'&cUnleash the hounds!!!' >0 1
      - summon $Hound:5:1 >0 1
      - delay 20
      - summon $Hound:5:1 >0 1 
      - delay 20
      - effect boss sound game.potion.smash:1:1 >0 1
      - potionmobs 15:DAMAGE_ALL:1000000000000:1 $Hound >0 1
      - potionmobs 15:SPEED:1000000000000:1 $Hound >0 1
    Last edited Oct 21, 2014 by IamChaoz
  • Avatar of midlander23 midlander23 Oct 20, 2014 at 19:21 UTC - 0 likes

    Hello, I own a server where we're using your plugin, where MMaholic. However , we're getting some problems with the quantity of mobs that are spawning when you stay for too a bit in the same place , so I hope you can help me, we desperately need to solve it. I have the random spawner folder where we know the problem is, but we can't find it, hope you can help us :). If you want to help me, I can send you the yml file via e-mail, skype or whatever. Thanks

What feature do you want to see in v1.2?

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Date created
Dec 30, 2013
Last update
Oct 19, 2014
Development stage
  • enUS
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