Really useful guide. The part I would stress most for anyone reskinning a Unity game in 2026 is to treat it as a new product and not just a new coat of paint: swap the art, audio and UI properly, change the package name and signing keys, update the SDK and target API level, and test on a wide range of devices before release. It also helps to keep the project modular with a config-driven theme system, so changing sprites, fonts and levels does not mean touching the core code every time. Just as important is staying inside Google Play's rules, which means using only assets and source you have a license for and adding real new value, otherwise the app can be rejected under the repetitive content and spam policies. A good design lesson comes from games like Undertale, which is not a mobile title but proves that a clear identity, simple visuals and a strong concept matter more than polish alone, and that is what makes a reskin stand out. Thanks for sharing such a detailed breakdown. See details: https://theudertale.com/blog/undertale-apk-pc/