How to Host a WT Endless Sky Adventures Server (Skyblock Edition)
WT Endless Sky Adventures - Skyblock Edition is a fully guided skyblock pack on NeoForge 1.21.1 with 33K downloads, walking players through Create, Mekanism, Ars Nouveau, and Immersive Engineering across one structured quest line that builds up to Ascension. That's unusual for skyblock — most packs pick either tech or magic, not both in one coherent arc — so getting the server setup right matters more than usual.
Start with at least 7 GB of RAM. That's the floor the WT Endless Sky Adventures pack itself recommends to run its full stack — Create, Mekanism, Ars Nouveau, and Immersive Engineering all loaded at once on NeoForge 1.21.1 — without the server choking during world generation or the first tick of island loading.
Import the modpack through a direct catalog install instead of guessing from a client-side export. This pack's quest book and progression data are tied to specific mod versions, so a mismatched or hand-assembled server jar is the single fastest way to break the guided arc before it starts.
Watch the console through the full first boot. With four major mod systems initializing — tech from Create and Mekanism, magic from Ars Nouveau, and the automation layer from Immersive Engineering — you want to see NeoForge finish loading every mod and the world generate the starting skyblock island cleanly before you consider the server ready.
Only invite players once that first startup has completed without errors. Letting players load in mid-crash or mid-worldgen on a skyblock map risks corrupting the single starting island everyone's progress depends on.
Take a backup before importing a different world, updating NeoForge or any of the four core mods, or editing config files. Because the pack's quest line chains tech and magic progression together across one coherent arc up to Ascension, a bad update can wipe out hours of linked progress in a way a non-guided pack wouldn't.
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