How to Host a GT New Horizons Server (Forge 1.7.10 Setup Guide)

Start with at least 6GB of RAM dedicated to the modpack. GT New Horizons runs on the older Forge 1.7.10 base, which is lighter per-player than modern Minecraft, but the sheer size of its GregTech recipe tree and ore-dictionary registration still needs real headroom — don't assume "old version" means "low spec."

Import the official server pack directly through CoalHost's panel. GTNH's recipe overhaul depends on every mod loading in the exact configuration the pack author built, and the real server pack is the only reliable way to get that right on the first try.

Expect the first boot to take noticeably longer than almost any other modpack, and don't interrupt it. GTNH is notorious for long startup times while Forge registers its enormous reworked recipe tree — this is normal for this specific pack, not a sign something's broken, as long as the console keeps producing log lines.

Only open the server to players once that first boot reaches a clean "Done" with no mod-loading errors. Given how long GTNH's early game investment runs, a corrupted first boot wastes far more player time here than on a lighter pack.

Take a backup before any mod or Forge update, and before any major GregTech machine restructuring. GTNH runs are measured in weeks or months of deliberate progression — losing that to a bad update is a much bigger loss here than on a short-session pack.