Adjusted Phantom Spawns

Adjusted Phantom Spawns

Modify the conditions of phantom spawns with gamerules

by
3.1K Downloads
fabricneoforgegame-mechanicsmobs
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About this Mod

Adjusted Phantom Spawns

A mod for modifying the conditions of Phantoms spawning.

Technical details

Phantom spawning has a global cooldown of 1–2 minutes (randomly reset after it runs out). This mod provides the gamerule phantomSpawningCooldownPercentage to modify this cooldown as a percentage of the vanilla value. Smaller cooldown values mean phantoms may spawn more often, while larger cooldown values mean phantoms may only spawn less frequently.

For each player, phantoms can only spawn if their "Time Since Last Rest" statistic exceeds 1 hour (72000 ticks or 3 in-game days). This mod provides the gamerule phantomSpawningThreshold to adjust the statistic according to a desired threshold value in ticks. Smaller threshold values mean phantoms may spawn after a shorter than regular amount of time has passed since a player has slept, making them have to sleep more often. Larger threshold values mean phantoms may only spawn after an extended amount of time, making players have to sleep less often.

The chance of phantoms spawning is also based on how much a player has exceeded the threshold. This chance is now also scalable with the phantomSpawningChancePercentage gamerule. Lower values mean less chance, and higher means more.

Usage

To change the phantom spawning cooldown:

/gamerule phantomSpawningCooldownPercentage <percentage - default is 100>

Warning

The cooldown can't be manually reset. Setting it to a high value might mean you will have to wait it out even if you set it to something lower afterwards.

To change the sleep threshold:

/gamerule phantomSpawningThreshold <ticks - default is 72000 - one day equals 24000>

To change the chance of phantoms spawning:

/gamerule phantomSpawningChancePercentage <percentage - default is 100>

Available Versions

Adjusted Phantom Spawns 1.1.1-1.21.9release
MC 1.21.9, 1.21.10neoforge
October 20, 2025
Adjusted Phantom Spawns 1.1.1-1.21.9release
MC 1.21.9, 1.21.10fabric
October 20, 2025
Adjusted Phantom Spawns 1.1.1-1.21.5release
MC 1.21.5, 1.21.6, 1.21.7, 1.21.8fabric, neoforge
July 6, 2025
Adjusted Phantom Spawns 1.1.1-1.21.4 [NeoForge]release
MC 1.21.4neoforge
January 7, 2025
Adjusted Phantom Spawns 1.1.1-1.21.4 [Fabric]release
MC 1.21.4fabric
January 7, 2025

How to Install Adjusted Phantom Spawns on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).

3

Install Mod

Open the mod browser in the dashboard and search for "Adjusted Phantom Spawns". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricneoforge

Minecraft Versions

1.21.10, 1.21.9, 1.21.8 (+15 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Adjusted Phantom Spawns server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.

Is Adjusted Phantom Spawns compatible with fabric and neoforge?

Adjusted Phantom Spawns officially supports fabric, neoforge for Minecraft 1.21.10, 1.21.9, 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Adjusted Phantom Spawns – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Adjusted Phantom Spawns consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

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Recommended RAM
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Details

License
GNU Lesser General Public License v3.0 only
Server-side
Required

Supported Versions

1.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.21.21.1+8 more