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Pokémon Monomyth Save Files

Pokémon Monomyth is a free ROM hack of Pokémon Emerald by Team Monomyth, set in the Athanto region and released on October 30, 2026. The save rule that trading depends on is simple: the battery file shares the ROM’s name.

The rule that is official

On the link page, a ROM named PokemonMonomyth.gba expects PokemonMonomyth.sav in the same directory. Case and extra spaces matter. Other emulators may write .srm. Rename the extension for the trade, then rename it back.

Moving a cart save

• Copy the save off the flash cart SD card onto the PC.
• Place it beside the ROM with the matching base name before you open Celio Link.
• After the trade, copy that file back onto the SD card.
• Keep a copy of the normal save. A save state is not the file the link page uses.

What is known per platform

Damage stories from one community guide

pokemonmonomyth.com lists cloud-sync clashes, snapshot overwrites, and a bad import as ways a save goes missing. That is one site’s checklist, not Team Monomyth. The same page points at mGBA’s own note about keeping ROMs outside Program Files on Windows. I would write down the player name, the town, and the party before I trust a moved file.