How to make a Cobbleverse server

1What a Cobbleverse server needs

What a Cobbleverse server needs

Pack version	1.7.42, released 21 Jul 2026
Minecraft	1.21.1
Loader	Fabric 0.18.4
Java	21
Memory	6 GB, as Playkeeper suggests it
Mods on the server	136
Download	390 MB
Server files	None: servers are built from the pack itself
From	Modrinth, by LUMYVERSE, 6.8M downloads
Checked	28 Sep 2026, on Modrinth and with Playkeeper 0.4.2's install plan

Version 1.7.42 bundles Cobblemon 1.7.3, not the 1.8.1 of the official Cobblemon pack, so players join with Cobbleverse itself.

2There's no server pack

Cobbleverse publishes one file, a 239 MB .mrpack for players, and its page sends server owners to paid hosts. That file still has everything a server needs:

• The 136 mods the server runs. All but one download from Modrinth, 390 MB in all; the last comes inside the pack.
• 1,285 files only players use, the music, resource packs and shaders that make it big. An install tool leaves them off the server.

3The one-click way

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

1. 1

   Search New server › A modpack

   It's Cobbleverse 1.7.42. Your dashboard shows what it installs before anything happens.

2. 2

   Create and start it

   Playkeeper downloads the 136 mods, checks each against Modrinth's hash and leaves the players' files out.

3. 3

   Send friends the pack

   Share with friends on the Mods tab gives them the pack and their launcher's steps.

4By hand, from the .mrpack

Two free tools read the pack's list and build the server from it: the itzg Docker image, which Playkeeper runs servers in too, and mrpack-install.

# Cobbleverse 1.7.42 on Java 21: 6 GB in all, 4.5 GB of it Java's heap
docker run -d --name cobbleverse -p 25565:25565 \
  --memory 6G --memory-swap 6G \
  -e EULA=TRUE -e MEMORY=4560M -e USE_AIKAR_FLAGS=TRUE \
  -e TYPE=MODRINTH -e MODRINTH_MODPACK=cobbleverse -e MODRINTH_VERSION=1.7.42 \
  -v cobbleverse-data:/data itzg/minecraft-server:java21

# Writes the server, Fabric and the mods into ./cobbleverse
mrpack-install cobbleverse 1.7.42 --server-dir cobbleverse
# Then start it with Java 21 and accept the EULA in eula.txt

Open TCP 25565 in your provider's firewall, and give it 6 GB or more.

5The client mods it marks for servers

Cobbleverse 1.7.42 marks all its mods as needed on the server, including 22 that only change what players see or hear. We read each one's own files:

• 15 say they're client-only, like Sodium, Iris, Mod Menu, Zoomify and Continuity. Fabric doesn't load them on a server, so they only take disk space.
• 7 say they run on both sides, like Xaero's Minimap and World Map and FancyMenu, and load on the server as their authors intend.

They don't stop the server. To skip downloading the 15, list them in the itzg image's MODRINTH_EXCLUDE_FILES.

6Private and public servers

From the pack's rules on Modrinth, checked 28 Sep 2026:

• Friends and family: free to host.
• Public: every mod's licence applies, and some don't allow commercial use.
• A shop with ranks, perks or paid items rules out Cobbleverse's own structures, trainers and data packs.
• The name: not "COBBLEVERSE Server", but "COBBLEVERSE Compatible" is fine.

7Friends join with the same version

Players install Cobbleverse 1.7.42 in the Modrinth App, the CurseForge app or Prism Launcher, then join your server's address.

In Playkeeper, Share with friends on the Mods tab makes a page with the pack and their launcher's steps.