How to Host a KZN SMP Server (Fabric 1.21.1 Setup Guide)
KZN SMP is a Fabric 1.21.1 medieval survival pack built around custom world generation, a skill progression system, and unique items, tuned for smooth multiplayer rather than mod-count bloat. Hosting it well mostly comes down to getting the first boot right and backing up before anything risky.
Start with 5 GB of RAM — that's the recommended floor for KZN SMP on Fabric 1.21.1. It's a leaner pack than a kitchen-sink modpack, but the custom world generation and skill progression system still need real headroom once more than one or two players are online.
Import KZN SMP from the catalog instead of rebuilding it from a client export. The Fabric loader version, mod list, and configs all need to line up exactly, or the custom world generation and skill progression system won't initialize the way they're supposed to.
Watch the console through first boot. KZN SMP's custom world generation and skill progression system both need to finish setting up before the server is actually ready — let it sit and settle into a clean, idle state before doing anything else.
Don't invite your SMP members until that first clean startup is confirmed. Bringing players in while world generation or the skill system is still initializing is the easiest way to end up with broken chunks or lost progression on day one.
Back up before any world import, Fabric loader update, or config change. KZN SMP players invest real time into skill progression and a custom-generated world — losing either to a bad update is the kind of mistake an SMP doesn't recover from.
Use a cleaner KZN SMP path
CoalHost is built around modpack hosting, which makes KZN SMP much less annoying to launch correctly.
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