How to Host a DeceasedCraft Server (Forge 1.20.1 Setup Guide)

Start with 10 GB of RAM, not the 8 GB some listings quote — DeceasedCraft's combined NPC settlement AI, tech tree processing, and radioactive Wasteland zone generation push real-world usage past that lower number as soon as more than a couple of players are online.

Skip trying to recreate the modpack by hand from a client export — import the official DeceasedCraft pack directly through a modpack-aware host so the Forge 1.20.1 loader, mod versions, and configs land exactly as the pack author built them.

Watch the first boot through to a clean finish in the console — DeceasedCraft's NPC settlement spawners, radiation zone data, and tech tree registries all need to initialize fully before the world is safe to join; a server that looks stuck is usually still generating this data, not crashed.

Only invite players once that first boot has completed cleanly and you've confirmed the world loads without errors — joining mid-generation is the most common way to corrupt settlement spawn data or lock out tech tree progress on a modded zombie survival server.

Take a backup before any world import, Forge version bump, or config edit — losing a DeceasedCraft world means losing raided settlements, tech tree unlocks, and any progress made pushing into the radioactive Wasteland toward the cure, which can represent dozens of hours for an active group.