How to Host a Create 2 Mekanism: Sky Edition 2 Server

Create 2 Mekanism: Sky Edition 2 runs two full tech mod trees — Create's physical automation and Mekanism's chemical and energy systems — at once, on top of a void-island world. Start with at least 7 GB of RAM; that's the floor for both mod trees to load cleanly without constant garbage collection pauses as factories expand across the islands.

Skip trying to recreate the modpack by hand from a client export. Import the official Create 2 Mekanism: Sky Edition 2 pack directly from the host's modpack library so the Forge version, mod list, and configs match exactly what players will run locally — mismatched versions are the most common cause of "works for me, crashes for them" reports on skyblock packs like this.

Watch the console through the entire first boot. On a dual-tech-tree skyblock pack that means letting both Create's kinetic and contraption registration and Mekanism's chemical and gas registries finish initializing — look for the server to settle at idle TPS with no repeating mod-loading errors before you consider it ready.

Only invite players in after that first clean startup. Skyblock worlds are fragile at the start — a crash or forced restart during the very first chunk generation on a void world can corrupt starter islands before anyone has even placed a block.

Take a backup before importing a new world, updating the Forge loader, or changing Create or Mekanism configs. On a skyblock pack, a lost world means losing every resource chain built from scratch on a void island — there's no overworld to fall back on.