ModsFinder

Wither Spawn Animation

by bo_bo

With Wither Spawn Animation installed, a Wither altar plays a spawn sequence before the boss appears, so the fight feels like it is about to begin.

FabricForgeNeoForgeClient and serverAll rights reserved1.20.1 – 26.3

What it does

The mod adds an animation that plays after a Wither altar has been built. The author's aim is to replace the immediate appearance of the Wither with a build-up, so players sense that a boss battle is coming. A gamerule named witherSpawnAnimation switches the sequence off with the command /gamerule witherSpawnAnimation false, although altars built before the change keep their behavior.

Geckolib is required, and the mod is published for Fabric, Forge and NeoForge across the game versions 1.20.1 – 26.3. It is client and server, so the server and every player need it. The code is not open source; the mod is licensed as All rights reserved. Files exist for 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.11, 26.1, 26.2 and 26.3, with 1.6.2 as the latest build on each loader.

Key features

  1. Spawn sequence for altars

    A Wither built on an altar is preceded by an animation, instead of appearing at once.

  2. Gamerule toggle

    The witherSpawnAnimation gamerule turns the sequence off for new altars when set to false.

  3. Boss build-up effect

    The sequence gives the Wither summoning a visible lead-in, so the boss arrival is announced rather than sudden.

Compatibility

Latest build for each game version and loader.

26.31.6.2Not available1.6.2
26.21.6.2Not available1.6.2
26.11.6.2Not availableNot available
1.21.111.6.2Not availableNot available
1.21.11.6.2Not available1.6.2
1.20.6Not availableNot available1.1.2
1.20.4Not availableNot available1.1.3
1.20.11.6.21.6.2Not available
ReleaseBetaAlphaNot available

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

Requirements

Dependencies declared by the latest file for each loader.

Required 1

GeckolibA 3D animation library for entities, blocks, items, armor, and more!
Required

Incompatible 1

Wither Spawn FixFixes the issue where grass and other small blocks obstruct Wither spawning!
Incompatible

Required by 1 mod

Use cases

Boss build-up on a server

Server owners who want Wither fights to start with a visible sequence can keep the animation on for every altar.

Story-driven maps

Adventure maps that use Withers as set pieces can rely on the animation to mark the moment the boss is summoned.

Who it’s for: Server owners and players who want Wither altars to build tension before the boss appears. The mod suits survival and adventure worlds, and it is most useful where the altar is a deliberate event.

How it compares

Full comparison

Naturally Spawning Withers is a server-side only mod for Forge and NeoForge, released under All rights reserved and published for 1.20.1 – 1.21.5. No Wither is server-side only and open source under the MIT License, covering Fabric and Quilt for 1.19.3 – 1.21.5. Wither Spawn Animation differs by being client and server, and by adding a spawn sequence rather than changing whether Withers spawn at all.

ModLoadersGame versionsEnvironmentUpdated
Wither Spawn AnimationFabric, Forge and NeoForge1.20.1 – 26.3Client and server2026-10-04
Naturally Spawning WithersForge and NeoForge1.20.1 – 1.21.5Server-side only2025-05-27
No WitherFabric and Quilt1.19.3 – 1.21.5Server-side only2025-06-02

Questions

Does Wither Spawn Animation need Geckolib?

Yes. Geckolib is a required dependency, so it must be installed alongside Wither Spawn Animation on the same loader.

Can the animation be turned off?

Yes. Running /gamerule witherSpawnAnimation false disables it for new altars, but altars already built keep the sequence.

Does it work with Wither Spawn Fix?

Not directly, since the two are incompatible. The Wither Spawn Fix W.S.A. Compatible mod is published to let both features run together.

Must the server have the mod installed?

Yes. Servers that run it need every player to install it too.

In the catalog

Wither Spawn Animation is one of 7,216 Magic mods on ModsFinder, and one of 3,630 Magic mods for Fabric. 8,071 mods support Minecraft 26.3.

More from bo_bo

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What the author says

This mod adds an animation after a Wither altar has been built, to make players feel more involved in the game and actually feel that a Boss Battle is about to come, instead of the boring, usual, immediate spawn of the Wither, that makes it feel useless. (You can disable the animation with the command: "/gamerule…
bo_bo, on the Modrinth page

Official listing

Owner
bo_bo
Published
2024-08-15
Updated on Modrinth
2026-10-04
Facts verified
2026-10-15

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