Advancement-Based Spawning
Control mob spawning easily with advancements via datapack!
Screenshots
About this Mod
Advancement-Based Spawning
Is a small mod that allows you to control mob spawning via datapack. With it, you can easily control mob spawns dependant on what Advancements have or haven't been unlocked!
For a comprehensive explanation of how to use ABS, check out our GitHub ReadMe!
Enjoy! :D
Available Versions
How to Install Advancement-Based Spawning on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Advancement-Based Spawning". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21, 1.20.1 (+3 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Advancement-Based Spawning 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 (1.21.1). You can switch loaders with one click in the panel.
Is Advancement-Based Spawning compatible with fabric and forge and neoforge?
Advancement-Based Spawning officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.21, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Advancement-Based Spawning – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Advancement-Based Spawning 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.
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Install Advancement-Based Spawning with just one click on your server.