How do I play Riptide GP2 multiplayer with my friends?

Riptide GP2 supports 3 different multiplayer options, although not all of these are supported on all platforms.  

• Online Multiplayer - Log in with your account and play with others over the Internet.  You can play with randomly matched opponents, or with Friends using the Invite feature.  
  

  • Supported Platforms:
    

    • iOS (using Game Center)

    • Steam (using Steam ID)

    • Xbox One (using Xbox ID)

    • PlayStation4 (using PSN)

    • Note that online multiplayer is no longer supported on Google Play.

• VR Challenge - Race against ghosts of your friends as you try to set the best time on each track.

  • Supported Platforms:

    • Android (using Google Play Game Services)

    • iOS (using Game Center)

    • Steam (using Steam ID)

    • Amazon (using Game Circle)

    • Windows Store (using Google Play Game Services)

    • Xbox One (using Xbox ID)

    • PlayStation4 (using PSN)

• Split Screen Multiplayer - Race against multiple friends on a single device!  Connect 2 or more Bluetooth or USB game controllers (or a Smart TV remote control) to your device, and run the game. The screen gets divided into multiple small screens, one for each controller.

  • Supported Platforms:

    • Android

    • iOS

    • Steam

    • Amazon

    • Xbox One (supports up to 6 players!)

    • PlayStation4