Where to install a modpack
Modpacks are installed from the Modpacks tab inside the Software section of your server dashboard (a separate tab from individually installing standard server software). Spawnly supports four sources:
- CurseForge — search and browse modpacks, then pick a specific file version.
- Modrinth — same flow, sourced from Modrinth's modpack catalog.
- FTB — browse Feed The Beast's official modpack list.
- Custom ZIP — provide a direct download URL to your own server-ready modpack archive.
Installing from CurseForge, Modrinth, or FTB
- Choose a provider, then search or browse for the pack you want.
- Select the pack to view its available file versions.
- Choose a version and click install.
Where a modpack publishes a dedicated server pack file, Spawnly automatically prefers that over the regular client download, since server packs are pre-configured for headless server use.
Installing a custom ZIP
If your modpack isn't listed on any of the supported providers, use the Custom ZIP option and paste a direct download link to a server-ready archive. You'll also need to select the Java version your modpack requires, since this determines the Minecraft version range the server expects:
| Java Version | Minecraft Version Range |
|---|---|
| Java 8 | 1.12.2 and older |
| Java 11 | 1.13 – 1.16.5 |
| Java 17 | 1.17 – 1.20.4 |
| Java 21 | 1.20.5 and newer |
Switching modpacks or updating your pack version
Installing a modpack replaces your server's software and files, so Spawnly always shows an impact warning first:
- Updating within the same pack is treated as a lighter change.
- Switching to a different pack entirely deletes existing server files.
Switching to a different modpack deletes your existing server files. Back up first if you want to keep your current world — see Managing Backups & Restoring Your Server.
Next steps
Prefer installing mods individually instead of a curated pack? See Installing Mods and Plugins.