MythicMobs
Create custom mobs with unique abilities, drops, spawning conditions and AI behaviors using a powerful YAML configuration system.
FunWhat is MythicMobs?
MythicMobs is a configuration-driven custom mob engine. In YAML you define a creature's base type, health, damage, armour, drops and a list of skills — abilities triggered on conditions like spawning, taking damage, timers or being near a player. Skills can chain, target in patterns and call meta-skills, which is powerful enough to build full custom bosses with phases and mechanics. Custom drop tables, level scaling, random spawning rules and boss health bars round it out. A large add-on ecosystem (MythicMobs Premium packs, ModelEngine for custom models, Crucible for items) extends it further.
Who it's for: RPG, dungeon and adventure servers building custom bosses, themed mobs and scripted encounters. The backbone of most serious PvE content on Spigot/Paper. It is built and maintained by Xikage and sits in the fun category.
Key features of MythicMobs
- Custom mob creation
- Skill and ability system
- Custom drop tables
- Spawner configuration
- Threat tables and aggro
- Random spawning
- Boss health bars
- Mob levels and scaling
- Equipment and disguises
How to install MythicMobs
MythicMobs runs on Bukkit, Spigot or Paper servers. Xikage and the Mythic team maintain MythicMobs for current Spigot/Paper releases; the free and premium lines both track recent Minecraft versions.
- 1Stop your server, or have it ready to restart. Always back up your world and plugins folder before adding a new plugin.
- 2Download MythicMobs.jar (a build matching your server version) and place it in your server's /plugins folder.
- 3MythicMobs has no required dependencies, so it runs on its own once the jar is in place.
- 4Start the server fully. MythicMobs generates its configuration files on first launch — stop the server, edit them to taste, then start again.
- 5Confirm it loaded by checking the console for MythicMobs on startup, or by running one of its commands in-game.
Note: Drop MythicMobs.jar into /plugins and restart to generate the example mob and skill files. It runs standalone, but PlaceholderAPI, ModelEngine (custom models) and Crucible (custom items) are common optional companions. Custom mobs live in the Mobs and Skills folders and are reloaded with /mm reload.
MythicMobs commands and permissions
Main commands
/mm mobs spawn- Spawns an instance of a defined mob by its internal name at your location.
/mm mobs list- Lists all mob types currently defined in your configuration.
/mm items give- Gives a MythicMobs custom item to a player.
/mm reload- Reloads mob, skill, item and drop configurations without restarting the server.
Permission nodes
mythicmobs.command.spawn- Allows spawning custom mobs — keep restricted, as it can summon bosses.
mythicmobs.command.items- Allows giving custom items.
mythicmobs.command.reload- Allows reloading configurations.
MythicMobs FAQ
Do I need to know Java to make custom mobs?
No. MythicMobs uses YAML configuration, not Java. You describe a mob's stats, drops and skills in text files. There is a learning curve to the skill syntax, but it is configuration rather than programming, and the bundled examples give you working templates to adapt.
How do I spawn a custom mob?
Define the mob in a file under the Mobs folder, run /mm reload, then /mm mobs spawn <internalname>. To make it appear naturally, add a spawner with /mm spawners or a random-spawn entry that ties the mob to biomes and conditions.
Can MythicMobs give custom item drops?
Yes. You define drop tables and attach them to a mob, controlling drop chance, amount and conditions. Drops can include vanilla items, MythicMobs custom items, or items from other plugins, and can be tied to which player dealt the most damage.
What is the difference between free and premium MythicMobs?
The free version provides the full mob and skill engine. The premium version adds extra mechanics, targeters and convenience features, plus official content packs. Most custom mobs and bosses are achievable on the free version; premium mainly raises the ceiling for complex content creators.
Can I give custom mobs unique models?
Not on its own — MythicMobs uses standard entity types for appearance. Pair it with ModelEngine to attach custom 3D models to your mobs. MythicMobs handles the behaviour and stats while ModelEngine handles how the creature looks.
Features
- Custom mob creation
- Skill and ability system
- Custom drop tables
- Spawner configuration
- Threat tables and aggro
- Random spawning
- Boss health bars
- Mob levels and scaling
- Equipment and disguises
Commands
/mm mobs spawn/mm mobs list/mm items give/mm reload/mm signal/mm testPermissions
mythicmobs.command.spawnmythicmobs.command.itemsmythicmobs.command.reload