MonMMO
← Player wiki

Getting started

How do I join the beta?

Verify your email, choose a username, and redeem a beta code in your account settings for ongoing tester access. During an announced open-beta event, eligible verified accounts can play without a code. Visitors receive a closing warning and keep their character progress for their next visit.

Create an account · Account settings

What do I install?

Use the Windows installer or the x86-64 Linux AppImage. Sign in with your trainer username, add your ROMs to the folder the launcher opens, then press Play. The first launch builds the game assets locally. On Android 8 or newer, install the beta APK and select the ROMs on your device when the game asks.

Download for your device

Which ROMs does the desktop launcher accept?

Bring your own complete dumps of all five titles. The launcher checks the files themselves, so their filenames and the region you intend to play first do not change the requirements.

  • Game Boy Advance — English FireRed Revision 1 and English Emerald Revision 0. FireRed Revision 0 and Spanish copies of these two titles fail the launcher's revision check.
  • Nintendo DS — Platinum, SoulSilver, and Black. A complete copy of the correct DS title in another language can pass the initial check. If the launcher marks it untested, the first asset build determines whether it works.

How do I turn on the 3D view?

On desktop, press F4 in the world. If the 3D scenes are missing, the game requests them for the next asset build. After that build, press F4 again to turn on 3D in Johto, Sinnoh, and Unova. Press it once more to return to the flat view. Allow about 435 MB for the optional scenes.

What should I do when I get stuck?

If you have the beta tester role, type /beta in game chat to see the tools available to you. Look for your issue on the bug list. To file a new report, open Menu → Bug Report in the game. Include the region, map, last story event, and what you did just before the problem appeared.

Search existing reports

Checked for server 0.1.122 · 8 November 2026