bloodmoon_champion_ingame.png
bloodmoon_champion_side_by_side_powers.png
bloodmoon_champion_side_by_side.png
affixed_lineup.png
nemesis_level3.png
Description
âš™ Mob Rules âš™
Design your mobs in a visual editor, and watch them change as they would look in the game as you work.
Built for the Gearwright's Hollow modpack, and made for every pack maker who'd rather click than hand-write JSON.
🖥 A mob editor, built in
Type /mobrules_editor in your world and click the link. A full editor opens in your browser, connected live to the running game.
- Live 3D preview: the game itself renders your mob wearing its new gear, with your resource packs. You can toggle packs, tilt the view, and press Roll again to see other random loadouts and sizes.
- Spawn test mob: drops the mob, with your rule applied, right in front of you in the game.
- Save and reload: one button saves the rule and applies it in the game. You don't have to quit or restart.
- Check for errors: mistakes are caught before they ever reach your world.
✨ Start simple, go as deep as you like
Pick a starting point and change anything afterwards:
| Zombies with shields | Some zombies spawn holding a shield. |
| Fewer creepers | Stops half of creeper spawns. |
| Fortress skeletons | Skeletons in nether fortresses get chainmail and swords. |
| Elite mobs | A rare, tougher version with better gear and XP. |
| Mini-boss | Very rare and big, regenerates, and enrages when hurt. |
| Boss | 1 in 100 becomes a boss with a boss bar. |
| Passive turned hostile | Cows (or any animal) attack players. |
The Simple tab asks plain-language questions such as "Stronger each day", "Leap at the target" and "Becomes a nemesis when it kills a player". Every detail lives in tabs:
Who and where · Spawning · Stats · Gear · Name and effects · Combat · Powers · Behavior · Loot · JSON
🗡 What your mobs can become
- Where and when: biome, structure, height, light, time, weather, moon phase, day, distance from spawn, and how it spawned.
- Stats: any attribute, including other mods' attributes, that can grow stronger each day or farther from spawn.
- Gear: weighted loadouts, whole armour sets, enchants, trims, dyes, names and drop chances.
- Powers: leap, charge, pull, blink, web, summon, slam, shield and buff, each with a wind-up players can see coming.
- Combat: damage by type, on-hit effects, lifesteal, thorns, reinforcements, and enraging at low health.
- Affixes: random elite traits that build names like "Swift Vampiric Zombie".
- Nemesis: a mob that kills you takes a name, grows stronger, and taunts you when you meet again.
- World events: a Blood Moon, or any timed event, that switches rules on and off.
- Loot, XP, boss bars, particles, and spawn-list changes (the editor writes the biome files for you).
📦 It's all just a datapack
The editor saves plain JSON into your world's datapacks, or into kubejs/data. For a dedicated server, download the editor's rules as a datapack zip and drop it in. Players never need the mod for rules to work; everything runs on the server.
A ready-made example datapack is included in the source: elite undead, a Fortress Warlord, a Spider Matriarch, full-moon wolves, zombie nemeses and a Blood Moon.
⌨ Commands
/mobrules_editor · /mobrules list · errors · inspect · apply · recheck · event start/stop
🔧 Requirements
- Minecraft 1.21.1 · NeoForge 21.1+
- No other mods required
- The editor runs from a singleplayer or LAN-host world, on your own computer only (one-time link)
MIT licence · by Kragnoth · coded with AI assistance
Part of the Gearwright's Hollow family: Hallmarked · Wasteland Vision · Kragnoth's Skill Perks · Cog & Cultivar · Mob Rules
Kragnoth's Mobrules Team
