How to make a Prominence II server

Updated 28 Sep 2026 · 3 min read

The short answer

Host the Modrinth copy of Prominence II: Hasturian Era: version 4.1.1hf runs Fabric 0.19.3 on Minecraft 1.20.1 with Java 17, puts 347 mods on the server and needs 8 GB of memory. It carries the mods and data packs that CurseForge's copy leaves you to add, so Playkeeper installs it from version 0.4.4 with no steps by hand.

1What a Prominence II server needs

What a Prominence II server needs
Pack version4.1.1hf, released 25 Sep 2026
Minecraft1.20.1
LoaderFabric 0.19.3
Java17
Memory8 GB, as Playkeeper suggests it
Mods on the server347, and 91 more only players need
Download796 MB
Server filesNone: servers are built from the pack itself
FromModrinth, by ElocinDev, 2M downloads
Checked28 Sep 2026, on Modrinth and with Playkeeper 0.4.4's install plan

Version 4.1.1hf is a hotfix, published on 25 Sep 2026, the same day as 4.1.1. The server and every player need the same one.

2Modrinth's copy or CurseForge's

Prominence II is on both sites, and the two copies install differently on a server:

  • Modrinth, 2M downloads. 36 of its mods come inside the pack file itself, and 56 data packs sit in its config folder, where the Paxi mod loads them into every world. Playkeeper's plan for 4.1.1hf has nothing to add by hand.
  • CurseForge, 12.8M downloads. Five of its mods can only be downloaded by CurseForge's own app. Its server files would have them, but they're a zip inside a zip, which Playkeeper doesn't open, so its plan lists the five for you to add, and 27 data packs it doesn't put on the server.

Give friends the copy the server runs, at the same version, so their mods match it.

3The 347 mods on the server

  • 91 mods stay off, the ones Modrinth lists as for players' games only. Players get them in their own copy.
  • One of those goes on anyway: Mod Menu, because Forge Config Screens, which the server runs, won't start without it.
  • 36 warnings at start are harmless. Lithium can't read some of BCLib's block classes, logs "Lithium Class Analysis Error" for each, and leaves those blocks as they are.

On a test server on 28 Sep, with Playkeeper's build of that day, the log said Done (48.214s)! once the first world was made.

4The one-click way

Playkeeper runs your server on a VPS you rent. Install it with one command:

curl -fsSL https://playkeeper.io/install | sudo sh
  1. Open the template below, or search New server › A modpack

    Pick the Modrinth copy, 4.1.1hf. It shows Fabric, the 8 GB it suggests and the mods before anything installs.

  2. Create and start it

    Playkeeper downloads 796 MB, checks each file against Modrinth's hash, and adds the mods and data packs the pack carries itself.

  3. Send friends the pack

    Share with friends on the Mods tab makes a page with the pack and how to install it in their launcher.

New server, starting from a modpack: the most downloaded packs, each with its loader, Minecraft version, mods and the memory it needs.

5By hand, from the pack

The itzg image, which Playkeeper runs servers in too, builds the server from the Modrinth copy, with the mods and data packs inside it.

# Prominence II 4.1.1hf on Java 17: 8 GB in all, 5.2 GB of it Java's heap
docker run -d --name prominence-2-fabric -p 25565:25565 \
  --memory 8G --memory-swap 8G \
  -e EULA=TRUE -e MEMORY=5342M -e USE_AIKAR_FLAGS=TRUE \
  -e TYPE=MODRINTH -e MODRINTH_MODPACK=prominence-2-fabric -e MODRINTH_VERSION=4.1.1hf \
  -v prominence-2-fabric-data:/data itzg/minecraft-server:java17

Open TCP 25565 in your provider's firewall.

6Friends join with the same version

Players install Prominence II: Hasturian Era 4.1.1hf from Modrinth, in the Modrinth App or Prism Launcher, then join your server's address.

Their copy brings the pack's own screens, hotbar and the player-only mods the server leaves out.

The page friends open: the server's versions, the pack file to download and their launcher's steps.

Questions

How much RAM does a Prominence II server need?

8 GB, what Playkeeper suggests for its 347 server mods. Give it more as more friends join.

Is Prominence II Fabric or Forge?

Fabric. Version 4.1.1hf runs Fabric Loader 0.19.3 on Minecraft 1.20.1, with Java 17.

Should I host the Modrinth or the CurseForge copy?

The Modrinth copy: it carries every mod and data pack a server needs. CurseForge's leaves five mods and 27 data packs for you to add by hand.

Why does the log show Lithium Class Analysis Error?

Lithium can't read some of BCLib's block classes and skips its speed-ups for them. The server starts and runs normally.

Open it in your dashboard

Your own Prominence II server.

Free and open source. Friends get the same version from one link.

curl -fsSL https://playkeeper.io/install | sudo sh
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