Hello! I just replied to a similar post about this issue, here's a copy paste for convenience:
From what I can see in the game's AndroidManifest.xml file, it is targeting Android SDK 14 which is very outdated. SDK 14 stands for Android 4.0, so that means this game is targeting an outdated Android version.
If your Android version is currently 14 (not SDK level, actual Android version number being 14), then your system is automatically blocking the installation because Android 14 is set to not allow installations of apps targeting SDKs lower than 24 (Android 7.0).
There is a way to install this game on Android 14 but it involves using ADB or Shizuku to bypass the target SDK check, you can find more on that with Google because if I explained here this would become an essay! XD
The other way would be to wait for the developer to update their target SDK to at least level 24.
