Patch.xp3 -
A patch.xp3 file is a container used by the KiriKiri engine (commonly used for visual novels) to apply updates, translations, or mods to a game without altering the original game files .
Emulator for running KiriKiri games on Android . How to Use patch.xp3 for Modding/Translation Guide :: FUNCTIONAL patch and H-scene achievement patch.xp3
Popular tool for unpacking, viewing, and repacking .xp3 files . A patch