Requirements (Host): nVidia GTX 650 or better 7'ish Mbps Upload X-Input controller (x360 / x1) nVidia Experience Beta (2.8.0.80)

Requirements (Guest-CoOp Partner) Google Chrome 7Mbps Download or better X-Input Controller (x360 / x1)

Step-by-step guide First of all, the host will need the latest beta Nvidia Experience and drivers. To enable beta updates (for hosts): Open Nvidia Experience. Go to Preferences. Look down and you'll see "Beta updates". Put checkmarks on both and press "Check for Updates"(upper left corner). If you need beta drivers then go to "Drivers" tab and press "Check for Updates"(upper right corner). Let everything install. Restart your PC.

If everything goes right from now on when you launch a game you'll see an overlay popup. To start playing together (for hosts): Connect your controller, make sure it works. Launch the game, be sure to have it running in fullscreen. Press Alt+Z (default key combination for bringing up overlay). Click on "Stream". Click on "Copy Invite URL". Send this link to your friend (best to do via Steam overlay without minimizing the game). Click on 'Stream", then "Guest Controls". Press "Plays alongside me" and then "Done". Launch any chapter or Raid mode and wait till your friend connects. As soon as your friend presses "Start" on his gamepad the game will go into local coop mode.

To connect to a game (for player 2): Plug in your controller. Ask the host for the URL and copy/paste it in your Chrome browser. It will ask you to download a plugin, do so. Press the button to start the stream. After a while it should load and you'll see the game running with your own overlay. Select to play and press "Start" on your gamepad when Campaign or Raid lobby is running.

FAQ: Guest has Delay / Input Lag

If you connecting to your host, just like any other online game if you are to far away from each other your Ping / MS will be High and therefore you are getting input lag as the guest. So make sure your Partner is not on the other side of the world when playing.

Connection Interruption:

This is still a Beta feature by nVidia, you may experience some connection issues or Guest-Player not being recognized. Just re-send the invite and try again!