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SkyFactory Server Hosting

Few packs did more for skyblock than SkyFactory: one tree, one block of dirt and the void below. darkosto's SkyFactory 4 on Minecraft 1.12.2 is still among the most downloaded modpacks there are, and SkyFactory 5 brings the idea to Forge 1.20.1.

What SkyFactory Is

The SkyFactory modpack logo
SkyFactory by darkosto: Minecraft 1.20.1 on Forge, 293 mods in the newest release.

SkyFactory 5 has 293 mods, 18 of them for players only. Ex Nihilo Sequentia turns dirt, gravel and sand into ores through sieves and hammers, and Create Sifter does the same with Create. From there the pack opens up into Thermal, Industrial Foregoing, Mystical Agriculture, Botania with Garden of Glass, Ars Nouveau, Occultism, Draconic Evolution and RFTools Dimensions.

SkyFactory 4 on 1.12.2 has 202 mods and a different recipe, with Bonsai Trees, Prestige points that unlock rewards, Compact Machines, Mekanism, Astral Sorcery and ProjectE among them. It is finished: its last release, 4.2.4, dates from December 2021.

The 2 SkyFactory Editions, Counted

Counted on 27 September 2026 in the newest release of each edition
EditionVersionMinecraftLoaderModsClient onlyServer pack
SkyFactory 51.6 million downloads, released 11 March 20255.0.81.20.1Forge 47.4.029318Yes
SkyFactory 414.1 million downloads, released 13 December 20214.2.41.12.2Forge 14.23.5.28602026Yes

How Much RAM a SkyFactory Server Needs

Skyblock worlds are cheap to generate, so a SkyFactory server starts light. The same 5, 7 and 10 GB hold for either edition. What grows is production: automated sieves, mob farms and machines packed tightly into a small base are what the server spends its ticks on.

SkyFactory 5 includes a chunk loader mod, so bases keep running while their owners are away. Useful for a factory, and also the first thing to check when a server gets slower week by week. SkyFactory 4 runs on Java 8, and the panel picks it during the install.

Our memory figures for SkyFactory by group size, and the plan that covers each with a gigabyte to spare
GroupMemoryPlan
1 to 3 players5 GBStarter (8 GB)
4 to 8 players7 GBStarter (8 GB)
9 to 16 players10 GBStandard (12 GB)

Void Worlds and the Players Who Fall

Both editions include Forgiving Void. A player who falls off the island is sent back to the top of the world and drops down again instead of dying in the void. On a server that saves a lot of lost inventories, and it is one reason SkyFactory is friendly to groups new to modded play.

Players who share an island should agree on that before the first tree is planted. SkyFactory 5 also includes Together Forever, which keeps a team's advancements in step, so nobody has to repeat what a teammate already did.

Setting Up SkyFactory on Our Panel

  1. Back up what is there now

    If the server already holds a world, make a backup on the Backups tab. The installer moves an old mods folder aside under a dated name instead of deleting it. A server on Paper or vanilla goes to Forge on the Settings tab first, because the Mods tab only shows on a server with a mod loader.

  2. Search for SkyFactory on the Mods tab

    Type the name and pick the SkyFactory 5 entry from CurseForge. SkyFactory 4 is listed next to it as a separate pack, so check the name before you click.

  3. Choose version 5.0.8, or the one your group runs

    Take the exact version your players installed. Two releases can differ by a few mods, and a player whose list does not match the server's is turned away at the door.

  4. Install it in one go

    The machine fetches the pack itself and switches the server to Forge 47.4.0 for Minecraft 1.20.1 on Java 17. The server pack the makers put out carries the configs, so the server starts with the same settings your players have.

  5. Start it and wait for Done

    The first start loads 275 mods and builds the spawn area, which takes a few minutes. When the console prints Done, players join with the address from the panel.

Rather not do it yourself? With free setup we install SkyFactory for you after you order.

Packs Close to SkyFactory

FTB Skies 2 is Feed The Beast's take on the same start, SevTech: Ages comes from the same maker with a sky variant of its own, and Project Ozone 3 is another classic 1.12.2 skyblock. Better OneBlock begins with a single block.

Questions About SkyFactory Servers

SkyFactory 5 or SkyFactory 4?

SkyFactory 4 is the finished classic on Minecraft 1.12.2 and one of the most downloaded packs of all time. SkyFactory 5 is the newer one on Forge 1.20.1 with 293 mods. A server runs one of them, and worlds do not move between them.

How much RAM does a SkyFactory server need?

For two or three friends we plan 5 GB; at four to eight players it is 7 GB, and past that 10 GB. The world costs little; the automation your group builds decides where in that range you end up.

Does SkyFactory 4 still work on a server today?

Yes. Minecraft 1.12.2 runs fine with Java 8, which the panel picks for it. Players install the same 4.2.4 release through the CurseForge app.

Does SkyFactory need pregenerating?

No. The world is mostly void, so there is little to generate. Spend that effort on keeping production lines efficient instead.

Written and checked by the Astroworld Hosting team. Last reviewed on 27 September 2026.

Delivery: most servers are handed over instantly and run within seconds of payment, the rest follow within 60 minutes during the day and within 12 hours at night.