How to host a Pixelmon server
Create a Pixelmon server with The Pixelmon Modpack 9.3.16, keep it separate from Cobblemon, join from the matching NeoForge profile, and fix version and memory problems.
Use the Pixelmon server hosting page. It opens with The Pixelmon Modpack 9.3.16, NeoForge, and the starting RAM already selected.
| Modpack | The Pixelmon Modpack |
|---|---|
| Modpack source | Modrinth #the-pixelmon-modpack |
| Version | 9.3.16 |
| Minecraft / mod loader | 1.21.1 / NeoForge |
| Starting RAM | 8 GB — Estimated by berrybyte |
| Details checked | September 16, 2026 |
| Release status | This is The Pixelmon Modpack 9.3.16, not Cobblemon and not the 9.4 beta. A Pixelmon client cannot join a Cobblemon server. |
Pixelmon is not Cobblemon. They are different packs with different loaders. A Pixelmon client cannot join a Cobblemon server. If your group wants Cobblemon, use the Cobblemon hosting page instead.
Pixelmon or Cobblemon?
| Difference | Pixelmon | Cobblemon |
|---|---|---|
| Pack | The Pixelmon Modpack | Cobblemon Official Modpack [Fabric] |
| Loader | NeoForge | Fabric |
| Current page | Pixelmon hosting | Cobblemon hosting |
| Feel | Larger Pokemon RPG with gyms, NPCs, and a bigger roster | Lighter official pack that stays closer to vanilla Minecraft |
Pick one pack for the whole group. Do not mix clients.
Create the Pixelmon server
Open the Pixelmon page
Go to Pixelmon server hosting. Confirm the name is The Pixelmon Modpack, not Cobblemon.
Choose a location and plan
Start with the RAM shown in the server details. Pick the region closest to most players.
Finish checkout
Keep Pixelmon attached. berrybyte installs 9.3.16 with NeoForge and Java 21.
Wait for first boot
Watch Console until startup finishes. Do not upload a client instance over the generated server.
Install Pixelmon on every computer
Install The Pixelmon Modpack
Search for The Pixelmon Modpack in the Modrinth App or CurseForge app. Do not install Cobblemon Official Modpack.
Match 9.3.16
Select the exact release shown on the server. Stay on the stable 9.3.16 line unless you intentionally move the server to another release. The 9.4 listing is a beta.
Launch the NeoForge profile
Pixelmon 9.3.16 needs Java 21 and a current NeoForge 1.21.1 build. Let the menu load before opening Multiplayer.
Join
When Console shows the server is ready, open Overview, copy Server address, and add it from the Pixelmon profile. Include the port.
If a player sees a loader or missing-mod error, ask whether their profile says Pixelmon or Cobblemon before changing the server.
Update Pixelmon without losing Pokemon data
Create a backup
Back up the world, configs, and Pixelmon data before changing the pack.
Stop the server
Wait for the final save to finish.
Change the complete pack release
Use Overview → Modpack → Change. Do not update Pixelmon, NeoForge, or sidemods one file at a time.
Update every player
Move each launcher profile to the same release, then start the server and watch Console.
See Minecraft backups before the first update.
Fix common Pixelmon server problems
A player installed Cobblemon. Reinstall The Pixelmon Modpack and match 9.3.16. Changing only the loader does not convert one pack into the other.
Java or NeoForge is too old. Pixelmon 9.3.16 needs Java 21 and a current NeoForge 1.21.1 build. berrybyte selects those on the server; the player launcher must do the same.
Someone added extra Pixelmon sidemods. Return both sides to the unmodified 9.3.16 pack before mixing extra battle, spawn, or economy mods.
An older 8.x or 1.16.5 Pixelmon world will not join. Current Pixelmon 9.3.x is a different Minecraft and loader line. Keep the old server on its original release, or plan a fresh 9.3.16 world.
The server runs out of memory during exploration. Move to the extra RAM option shown above before deleting Pokemon or world data.
Still stuck? Open a support ticket and
attach latest.log plus the exact launcher profile name.
Next steps
Open The Pixelmon Modpack with the starting plan selected.
Host Cobblemon insteadUse the other Pokemon-in-Minecraft pack if that is what your group wants.
Join a Minecraft serverCopy the full address and connect from the matching profile.
Browse other modpacksSearch Modrinth, CurseForge, and FTB for a different pack.
Frequently asked questions
Is Pixelmon the same as Cobblemon?
No. They are two different Pokemon-in-Minecraft packs. This guide installs The Pixelmon Modpack on NeoForge. Cobblemon is a separate official Fabric pack and cannot join this server.
Which Pixelmon version does berrybyte install?
The Pixelmon Modpack 9.3.16 for Minecraft 1.21.1 using NeoForge. That is the current stable release, not the 9.4 beta.
How much RAM does a Pixelmon server need?
Use the starting RAM in the server details below. It is a berrybyte estimate for a small group. Move up if several players explore and battle at once.
Do I need to install NeoForge myself?
No. Choosing Pixelmon at checkout sets The Pixelmon Modpack, Minecraft 1.21.1, and NeoForge for you.
Should I back up before updating Pixelmon?
Yes. Back up the world and Pixelmon data, update the complete pack, then move every player to that same release.