In the context of mods, a "signed" APK usually means the modified file has been re-signed with a generic test key. This allows the app to be installed on an Android device (provided "Unknown Sources" is enabled), but it will not receive official updates and cannot connect to Google Play Games services for cloud saving.
Searching for a "signed APK" mod for typically leads to third-party hosting sites that offer modified game files (often with unlimited money or unlocked features). However, downloading such files carries significant security risks. Important Considerations Download Kingdom Wars2 Mod Signed apk
: The safest way to play Kingdom Wars 2 is through the official Google Play Store. In the context of mods, a "signed" APK