Unity_GooglePlayServices

https://github.com/playgameservices/play-games-plugin-for-unity

Tutorial: https://codelabs.developers.google.com/codelabs/playservices_unity

Savegame error workaround: https://drive.google.com/file/d/1Mh9JZKPiHr4iYO7JbmXGNX0O4RusQFz1

1. Create keystore
2. Register game services with keystore SHA1 on GPDC
3. Register and publish game on GPDC
4. Change SHA1 to the Upload one
5. Savegame workaround (if needed)