There are a few ways to crossplay Ark on PlayStation 4 and Xbox One. The easiest way is to use the game’s online mode. You can create a new account and play with other players, or join an existing account and play with others who are also using their PlayStation 4 or Xbox One. Another way to crossplay Ark is to use the game’s co-operative multiplayer mode. In this mode, you and other players work together to complete tasks in order to progress through the game. Finally, you can also use the game’s modding tools to create your own custom levels and characters.