APKadmin.com is a free online APK file hosting and APK file sharing service. With APKadmin.com, you can upload your APK files to the internet and share them to users via websites, forums, social networks (Facebook, Twitter, etc.) or send a file download link via email.

If you have original game already installed, skip 3. & 4.. 4. Start original game and login once with Google+. 5. Close game and install unsigned APK over the playstore version (don't remove the original game).