- Download the Emerald Imperium Patch
Download and automically apply the latest patch for Emerald Imperium below. You must provide your own legally obtained Pokémon Emerald ROM. This patch is for personal, non-commercial use only.
Apply Latest Patch (v1.2)
Last updated: 2025-05-16
How to Patch
- Download a clean Pokémon Emerald ROM (U) (not provided here).
- Click the button above or go to the following link: Pokemon Emerald Imperium Patcher.
- Load your un-patched ROM into the "ROM file" box.
- Click "Apply patch" to receive your newly patched version of Imperium! If the above patcher is down, or if you are patching on Safari on iOS, use the following link: Generic Pokemon Patcher and find the latest patch in the #how-to-play channel on the Imperium Discord.
Changelog
- v1.2: (2025-05-16): Added many NPCs to help access alternate forms, changed some abilities and encounters, updated several battle rewards, and much more.
- v1.1: (2025-01-27): Fixed many crashes, added ShinyS cheat code, removed EVs from MGM, and more.
- v1.0: Initial release.
FAQ
Where do I get a clean Emerald ROM?
We cannot provide ROMs. Please dump your own cartridge or use a legal backup.
If you were to search on Google for this material, you would need to search for something called "(TrashMan)" but we don't know what that is.
The patcher gives an error!
Make sure your ROM is a clean, unmodified Pokémon Emerald (U)(TrashMan). Check the file extension and try redownloading.
My emulator won't load the game!
Try a different emulator, or check that you patched the ROM correctly. Some emulators require specific settings for ROM hacks.
Some users have reported issues using MyBoy, Visual Boy Advance, and Delta emulators. While these are popular choices, they may cause crashes with Emerald Imperium. Feel free to try them, but the emulators listed below are recommended for the best experience.
Which emulator should I use?
mGBA is a highly accurate and feature-rich emulator with excellent performance.
RetroArch is a multi-system emulator with an mGBA core that is recommended.
iOS users should also use the RetroArch emulator with an mGBA core.
Android players can use RetroArch or Pizzaboy, Lemuroid, or FullRoid for best performance.
Need Help?
Join our Discord for support and community discussion.