Deep Dungeon is a series of first-person RPGs that was developed by Square (but oft-published by other companies). The game is nothing much to write home about, the thing with first-person RPGs is that if you’ve played one, you’ve played them all, and this is no exception.

This translation is complete. It requires usage of the FDS Disk Image Expansion program before patching. Details are in the readme.

Note that the expansion program and the patch expects a 16-byte fwNES header (total image size 131,016 bytes). If your copy of the original disk image lacks the hader (image 131,000 bytes), download the updated version of FDS Expander from RHDN, or add a 16-byte header manually with a hex editor. (the 16 bytes to be added at the beginning of the file: “FDS”,0×1A,2 and pad the rest with zeros.