This is a translation patch for a simple Japanese NEC-BASIC game called Dragon & Princess, generally assumed to have been released in late 1982. This game is notable for having been the first known RPG by Japanese developers, and for being the first known RPG with multi-character tactical combat (which Ultima III would introduce several months later).
I (NLeseul) looked into making a translation patch for this game specifically because of rumors that the CRPG Addict was interested in a playthrough. Much of the translation was provided by Laszlo Benyi, another regular on that site's forums who volunteered.
This patch will be distributed in BPS format, so you will need a patching tool capable of handling it. Floating IPS is a fairly common such tool, and is also available on GitHub. Romhacking.net also maintains an online patching tool.
The only known version of Dragon & Princess is on a compilation disk image with the filename Oldmix2.d88, so that is the file to which the patch should be applied.
CRC32: 798b6721
Note that the original disk also contained a game called トンキーゴリラ ("Donkey Gorilla"). It didn't boot at all for me on the M88 emulator, so it may simply be lost to history. Hence, I elected to have the patch overwrite that game's data to make room for the English text of Dragon & Princess. So if you're particularly attached to your copy of トンキーゴリラ, you should probably back it up before applying this patch.
All other games on the disk should be untouched, so you can continue enjoying such gems as The Pro Bowling, スカートめくり ("Skirt Lift"), 3D-Tank Conbat, and MOMOKO チャン ノ サクランボ ヒロイ ゲーム ("Momoko-chan's Cherry-Grabbing Game").
If for some reason you want to build the patch yourself using the script from GitHub, the syntax is simply:
python build_patch.py <original disk> <destination disk>
Note that if the destination disk already exists, it will be overwritten.
The script can also generate a disk with
the party's initial stats maxed out and
random encounters disabled, to make testing
easier. Simply include the --easy-mode
flag in the above command line.
This patch's source is hosted on GitHub; questions and bugs can easily be placed there. You can also reach me directly at nleseul@this-life.us.