How to Host a Create Ultimate Selection 2 Server (NeoForge 1.21.1)
Create Ultimate Selection 2 bundles Create Aeronautics with the best Create addons into one NeoForge 1.21.1 pack, covering engineering, automation and airship-style flight in a single install. Unlike narrower Create packs — CABIN, Create Live 7, Create Colonies - AERONAUTICS, Create Comes Alive, or the Fabric-only All of Create — this one is a broad best-of compilation rather than a single sub-focus, so hosting it right means getting the RAM and first-boot checks correct across a wider mod surface.
Create Ultimate Selection 2's own recommended RAM floor is 8 GB — treat that as your starting point, not a guess borrowed from a generic NeoForge pack; the combined Create Aeronautics and addon stack needs that headroom before you add any mods of your own.
Import the modpack through a clean .zip/CurseForge import flow instead of trying to reconstruct the mod list from a client export — with this many Create addons stacked together, even one missed dependency JAR will keep the server from booting.
Watch the server log through first boot until the world finishes loading cleanly — Create's kinetic network, contraption assembly, and the aeronautics addon's airship logic all need to initialize without errors before you trust the server is stable.
Only invite players once that first clean startup is confirmed — joining mid-crash-loop is how Create servers end up with corrupted contraptions or half-loaded chunks that are hard to untangle later.
Take a backup before importing an existing world, updating the NeoForge loader, or changing addon configs — losing a world here means losing complex multi-block contraptions and airship builds that can take hours to rebuild.
Use a cleaner Create Ultimate Selection 2 path
CoalHost is built around modpack hosting, which makes Create Ultimate Selection 2 much less annoying to launch correctly.
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