Xbox One and Xbox 360 players can potentially play together, but there are some caveats. First, both systems must be connected to the same network. Second, both systems must be running the same version of Microsoft Windows. Third, both systems must have an Xbox One game controller and an Xbox 360 game controller. Finally, both systems must be set up for multiplayer gaming. If all of these conditions are met, you can theoretically play together with other Xbox One or Xbox 360 players online. However, there are a few caveats that should be aware of before starting this adventure: first, some games may not work as intended because they require specific hardware or software requirements; second, some games may not work at all if one system is not connected to the network; and third, some games may only work with certain controllers.