
Regius
Breed ball pythons in Minecraft using actual genetics!
Screenshots






About this Mod
Do you like collecting critters?
Do you like breeding those critters to make prettier critters?
Regius is a mod that aims to re-create the ball python breeding hobby in Minecraft to a reasonable degree of realism, including a genetics system similar to (But more expansive than) vanilla's Pandas.
Don't know much about ball pythons or genetics? No problem! Regius includes an in-game guidebook, Ball Pythons and You, to help complete newcomers learn everything they need to know to use the mod. It can be crafted with a vanilla book and a piece of sphagnum moss.
Sphagnum Moss
Sphagnum moss is a plant that can be found growing occasionally in swamps. You can't grow more of it (yet!), but you can use it as decoration or compact it into a block and grow grass, flowers, etc in it! It can also be dried in a furnace, and then re-hydrated by placing it in water.
Hollow Logs
You ball python will need something to crawl in! Hollow logs can be crafted from any vanilla wood by placing 8 logs in a ring on a crafting table. (Like the chest recipe)
Ball Pythons
Ball pythons can be found in savannas, and then carried home with you in an empty bucket. On rare occasions, your new pet will have a special morph that makes it look different from most other ball pythons! If you have two pythons, you can breed them with raw rabbit meat and they have a chance of passing whatever morphs they have down to their children. (Some morphs are recessive however, so it won't always be immediately obvious that this has happened)
Genetics
Regius currently includes three morphs: Albino (Recessive), pastel (Incomplete dominant), and pinstripe (dominant). That might not sound like a lot, but a dedicated breeder can create 11 different patterns with just these morphs! Genetics in Regius are simulated using a Punnett square system, so a baby ball python can carry genes from its parents that aren't immediately obvious!
Coming in the Future
- Growable sphagnum moss
- Naturally generating hollow logs
- More customization with tags
- Dynamic python behavior (Hiding, basking, etc.)
- More morphs!
If you enjoy Regius, you should check out its inspirations: Bettas and Baby Fat!
Available Versions
How to Install Regius on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Regius". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Regius server crashes on startup – what to do?
Most common cause: wrong neoforge 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 Regius compatible with neoforge?
Regius officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Regius – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Regius 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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Rent Modded Server
Install Regius with just one click on your server.