BatchLZ77 / DSDecmp4 / lzx to recompress the edited file.Nightmare: thane98's Nightmare for Fire Emblem Fates, Nightmare 1 or Nightmare 2.Currently, any 3DS with CFW or homebrew access is able to do this. A way to decrypt the game and extract the game's files.bin file format, you definitely can add something new to the game. Nightmare is the tradition of Fire Emblem ROM hacking community.Ī Nightmare module (.nmm file) is just a text file which defines structure in a data file.īecause Nightmare only allows editing fixed-size data, you can't add any new stuff into the game via these modules. With Nightmare, even those who don't have any knowledge in data structure and hex editing are able to edit the game's files and make some cool stuff. Nightmare is a program that allow you to easily hex edit the data files using modules. A collection of Nightmare modules and small tools for Fire Emblem Fates.