Make your own version of Dragon Warrior (NES): change the monsters, items, shops, maps, towns, story text and pictures, then save it to play.
1
Load your game
Drag your Dragon Warrior ROM onto this box, or find it in your files. It stays in your browser and is never uploaded.
No ROM loaded
2
Make it yours
Change whatever you want: pick a preset on Home, or edit the monsters, items, shops, maps, story text and more in the tabs on the left.
3
Play it or share it
Play it now right here, with sound and a controller. Just for you: save the new ROM for your emulator. To share your creation: save the BPS patch and send it to a friend.
How your friend plays your patch
Open Rom Patcher JS, a free site that works right in the browser.
Pick their own copy of Dragon Warrior (NES, US) as the ROM file.
Pick your .bps file as the patch, then press Apply patch.