As of now, multiplayer is completely broken. It didn't used to be this way, either. If the prison you try to play online on is a large sized prison, nobody is able to join. They get kicked out of the joining screen halfway through. If you start a prison as a small prison, and gradually work your way up to a larger sized prison, the same thing will occur, where the percent change of them being able to join gets smaller as the prison gets larger, until they can't join at all.
This really sucks because it means that every time you and your friends get the prison to a certain size, you all have to start over because nobody is able to join due to this bug.
I've found that when your prison becomes a size of 200 x 160, the chance of anyone joining is 0%, but when the prison is 100 x 80, the chance of anyone joining is 100%, and as you expand your prison the chances of being able to join decrease until they hit that said 0%, and can no longer join anymore.
My friend and I have lost 2 prisons to this bug, and are now on our third playthrough. Its extremely unfortunate and I really hope that the developers find out what is causing this soon, because a year ago this was not a problem and the game was a blast.
This really sucks because it means that every time you and your friends get the prison to a certain size, you all have to start over because nobody is able to join due to this bug.
I've found that when your prison becomes a size of 200 x 160, the chance of anyone joining is 0%, but when the prison is 100 x 80, the chance of anyone joining is 100%, and as you expand your prison the chances of being able to join decrease until they hit that said 0%, and can no longer join anymore.
My friend and I have lost 2 prisons to this bug, and are now on our third playthrough. Its extremely unfortunate and I really hope that the developers find out what is causing this soon, because a year ago this was not a problem and the game was a blast.