How to Host a Dungeon Heroes Server (Fabric 1.21.1)
Dungeon Heroes is a vanilla+ dungeon crawler built on Fabric 1.21.1, with structured dungeon encounters that scale to your party size. It's designed for group co-op play, and the Fabric base keeps performance clean compared to heavier RPG overhauls like DawnCraft or Beyond Ascension. Here's how to get a Dungeon Heroes server running correctly from the first boot.
Start with at least 5 GB of RAM — that's Dungeon Heroes' own recommended floor, and going lower risks dungeon generation and mob-heavy encounters stuttering once a full party is inside.
Import the modpack directly from Modrinth or CurseForge through your host's modpack installer instead of manually copying a client export — this avoids mismatched Fabric loader versions or missing server-side dungeon mods.
Watch the console on first boot until Fabric finishes loading every mod and the dungeon generation systems initialize cleanly — Dungeon Heroes' structured encounters depend on world-gen data loading before anyone enters a dungeon.
Only invite your party after that first clean startup — joining mid-boot while dungeon structures are still being registered is the most common cause of broken loot tables or missing encounters.
Take a backup before any world import, Fabric loader update, or config change — since dungeon progress and loot scale with party size, losing a world means losing every party's cleared-dungeon progress at once.
Use a cleaner Dungeon Heroes path
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