install.
server
mc.muri.io
pack
All the Mods 10 (ATM10) v6.6 — Minecraft 1.21.1 — NeoForge 21.1.224
os
guide is for Windows. Java 21 ships with the launcher.

1Install ATM10 6.6

Pick a launcher. Prism Launcher is recommended (open-source, fastest). CurseForge App works too.

  1. Download & install Prism Launcher (or CurseForge App)
  2. Sign in with your Microsoft / Mojang account
  3. Prism: Add Instance → CurseForge → search "All the Mods 10" → 6.6 → OK
    CurseForge App: Browse → search "All the Mods 10" → 6.6 → Install
  4. Wait until the launcher finishes downloading (~3 GB of mods + Java 21)
  5. Launch the instance once to confirm it starts up

2Run the PowerShell auto-install

This pulls the extras for mc.muri.io and drops them into your ATM10 mods folder. Auto-detects Prism / CurseForge / FTB / ATLauncher / MultiMC / Modrinth / GDLauncher. Pure-additive — never touches ATM10 base.

irm https://mc.muri.io/install.ps1 | iex

Open PowerShell (Win+R → type powershell → Enter), paste the line, hit Enter. The script will:

  1. find your ATM10 mods folder automatically (or ask if it can't)
  2. read each existing mod's modid and replace older copies of any extra (matched by modid, not filename)
  3. drop in the latest extras for mc.muri.io
  4. print a summary; replaced files end up in a timestamped backup folder next to mods/

view the raw script if you want to read it before running.

3Launch & join

  1. Launch ATM10 from your launcher
  2. Multiplayer → Add Server → mc.muri.io
  3. Join
if launch crashes
Check logs/latest.log. Most issues are MC version mismatches — ATM10 6.6 needs exactly Minecraft 1.21.1 + NeoForge 21.1.224.
find the mods folder manually
Prism: right-click instance → Folder → Open .minecraft → mods/
CurseForge: instance card → ⋯ menu → Open Folder → mods/