iStalkGamerBoys

I figured it out. All you have to do is add the PS player as a friend on XBOX. Ask them for their gamer tag in Grounded. It has to be the name that they play under in Grounded. Once you two add each other, you will be able to play together. Hope this helps!

I haven't bought it yet. I usually play on my Xbox game pass for free. However, I noticed I do not even have the option to enable cross-play. I do not see it on the main menu screen and when I open up options it is not there under the "online" section like the instructions on the Grounded website. I wonder if I have to buy the full version instead of just playing on Game Pass to see this option. Does anyone know anything about this?