ModsFinder

King Boo

by ThirtyFangs

King Boo brings the Mario ghost into Minecraft as a mob that players can encounter and fight, with custom animations and textures.

FabricForgeNeoForgeQuiltServer required, client optionalAll rights reserved1.21.6 – 26.3

What it does

King Boo adds the King Boo Mario character as a mob with its own model, animation set and texture layer. The texture uses opacity so the ghostly body reads as translucent. King Boo does not use special attacks, so its behavior stays simple and close to the character's original design. The mod is available for Fabric, Forge, NeoForge and Quilt, and a data pack build is also published for servers.

Only the server needs the mod to spawn King Boo, so a server that runs it can serve players who join without installing anything. A resource pack is required for the mob to display correctly, and the client should load that pack alongside the mod. Builds cover 1.21.6 – 26.3 across 11 release versions, and the latest file targets 26.3, dated 2026-09-21, on the beta channel.

The mod is released under All rights reserved and is not open source. Its author is ThirtyFangs, and the first file was published on 2026-09-21, the same day as the latest update.

Key features

  1. King Boo mob

    King Boo Mario appears as a hostile-free mob drawn from the Mario series, with its own model.

  2. Custom animation

    The mob has a custom animation set that gives its movement a floating, ghostly character.

  3. Translucent textures

    Its texture uses opacity so the body looks semi-transparent, as the original character does.

  4. No special attacks

    King Boo keeps to plain behavior and does not use special attacks.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
26.x5 of 5 versions with builds
26.31.0+mod1.0+mod1.0+mod1.0+mod
26.21.0+mod1.0+mod1.0+mod1.0+mod
26.1.21.0+mod1.0+mod1.0+mod1.0+mod
26.1.11.0+mod1.0+mod1.0+mod1.0+mod
26.11.0+mod1.0+mod1.0+mod1.0+mod
1.21.x6 of 6 versions with builds
1.21.111.0+mod1.0+mod1.0+mod1.0+mod
1.21.101.0+mod1.0+mod1.0+mod1.0+mod
1.21.91.0+mod1.0+mod1.0+mod1.0+mod
1.21.81.0+mod1.0+mod1.0+mod1.0+mod
1.21.71.0+mod1.0+mod1.0+mod1.0+mod
1.21.61.0+mod1.0+mod1.0+mod1.0+mod
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Mario-themed worlds

Servers and single-player worlds built around Mario characters can place King Boo as an encounter.

Who it’s for: Players and server owners who want the King Boo character in a Minecraft world, with a resource pack installed on the client.

How it compares

Full comparison

Boo, Creepers! and Boo, Witches! are both Forge-only, server-side only mods for 1.20 – 1.20.1, released under the MIT License, so they cover a different loader and version range. Call of the King also adds a server-required mob but targets Fabric, Forge, NeoForge and Quilt for 1.21.2 – 26.2 under All rights reserved, which overlaps with King Boo's loaders and range.

ModLoadersGame versionsEnvironmentUpdated
King BooFabric, Forge, NeoForge and Quilt1.21.6 – 26.3Server required, client optional2026-09-21
Boo, Creepers!Forge1.20 – 1.20.1Server-side only2025-10-30
Boo, Witches!Forge1.20 – 1.20.1Server-side only2025-10-31
Call of the KingFabric, Forge, NeoForge and Quilt1.21.2 – 26.2Server required, client optional2026-06-30

Questions

Does King Boo need a resource pack?

Yes. The author lists a resource pack as required, so King Boo's model and textures need it to display correctly.

Does King Boo need to be installed on the client?

No. King Boo is server required and client optional, so a server with the mod can run without players installing it.

Which loaders does King Boo support?

Fabric, Forge, NeoForge and Quilt each have a file for 26.3, and a data pack build is also available for servers.

In the catalog

King Boo is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 8,071 mods support Minecraft 26.3.

Mobs mods11,058Fabric modsMods for 26.38,071

More from ThirtyFangs

All projects
Waterfall Particles1.14 – 26.3Better Nature1.21.6 – 26.3Wild Animals1.21.6 – 26.3Improved/More Biomes1.21.4 – 26.3The Twilight Realm26.1 – 26.3Gigantic Squid1.21.4 – 26.3

Similar mods

[EMF] Entity Model Features1.18.2 – 26.3Guard Villagers1.16.5 – 26.3Animal Feeding Trough1.16.5 – 26.3Just Enough Breeding (JEBr)1.15.2 – 26.3TslatEntityStatus1.16.5 – 26.3Nyf's Spiders1.12.2 – 26.1

Official listing

Owner
ThirtyFangs
Published
2026-09-21
Updated on Modrinth
2026-09-21
Facts verified
2026-10-15

Tags

Mobs
Open on ModrinthCompare