Max Potion ID Extender
Coremod that lifts the limit of potion effects to the max value of a 32bit integer (something around 2 Billion IDs)
About this Mod
With the amount of mods adding status effects and potion effects, it is not uncommon to find yourself short of IDs when building your own modpack.
Enter: Max Potion ID Extender. It's a small coremod that lifts the limit to the max value of a 32bit integer (something around 2 Billion IDs).
Please do note that:
A) This might have unforeseen side effects. If you find any please report them immediately.
B) This is needed both client side and server side. If you install it on your client and try to connect to a server that doesn't have it, there might be weird and unpredictable consequences. You won't be able to join a server with it if you don't have it on your client as well.
C) This might break your worlds. Please backup before installing and before uninstalling the mod.
D) This only works for minecraft 1.12.2. I won't backport because this mod is extremely difficult to code. 1.13 won't need this because it supports it natively, so I won't update it for future versions either.
Available Versions
How to Install Max Potion ID Extender on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).
Install Mod
Open the mod browser in the dashboard and search for "Max Potion ID Extender". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.12.2
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Max Potion ID Extender server crashes on startup – what to do?
Most common cause: wrong forge 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 (1.12.2). You can switch loaders with one click in the panel.
Is Max Potion ID Extender compatible with forge?
Max Potion ID Extender officially supports forge for Minecraft 1.12.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Max Potion ID Extender – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Max Potion ID Extender 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 Max Potion ID Extender with just one click on your server.