Mandatory Optifine
A mod that tells players they need Optifine in a modpack
Screenshots
About this Mod
If you want to publish a modpack that needs optifine in it, since it isn't possible due to copyright, put this mod instead, it will make appear the text "Install Optifine" in the main menu.
Available Versions
How to Install Mandatory Optifine 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 (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Mandatory Optifine". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.19.4, 1.19.2 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Mandatory Optifine 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 (1.20.1). You can switch loaders with one click in the panel.
Is Mandatory Optifine compatible with forge?
Mandatory Optifine officially supports forge for Minecraft 1.20.1, 1.19.4, 1.19.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Mandatory Optifine – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mandatory Optifine 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 Mandatory Optifine with just one click on your server.