First time connecting

Cesspool Island

A modded Minecraft server. You need the exact modpack below before you can join.

Server mc.cesspool.ing

  1. Have Minecraft Java Edition

    You need a Microsoft account that owns Minecraft: Java Edition. Bedrock and console versions can't join.

  2. Install Prism Launcher

    Download it from prismlauncher.org, open it, and add your Microsoft account when it asks.

  3. Add the modpack

    Click Add Instance, open the CurseForge tab and search:

    • Pack: All the Mods 10 - Aeronautics (ATM10A)
    • Version: ATM10AERO-0.8.0, exactly this one

    Select it and click OK. Prism downloads about 400 mods, so this takes a few minutes.

  4. Give it memory

    Right-click the new instance, then Edit → Settings → Java. Tick Memory and set the maximum to 8192 MiB. Keep the minimum at 4096 or lower. If your PC has 16 GB or less, use 6144.

  5. Launch once

    Double-click the instance. The first launch takes several minutes. Wait for the main menu.

  6. Join the server

    Click Multiplayer → Add Server, enter mc.cesspool.ing as the address, save, and double-click the server.

If something goes wrong

Prism says some mods must be downloaded manually
A few mod authors block launchers. Prism lists each one with a link. Download the files from those links in your browser and drop them into the window Prism shows.
"Incompatible" or "mod mismatch" when joining
Your pack version differs from the server's. Make sure the instance is exactly ATM10AERO-0.8.0, and don't add or remove mods.
The game crashes or runs out of memory
Raise the maximum memory in step 4 and close other programs. The pack needs at least 6 GB.
"Connection timed out" or the server doesn't appear online
The server may be restarting. Wait two minutes and refresh the server list.
"Failed to verify username" or authentication error
Sign out and back in to your Microsoft account in Prism, then relaunch.