what do you mean by (you need someone sitting next to you) and what will the second player need a controller? or they can use there keyboard if they are in a another room
It's cooperative 2 player on the same screen - keyboard or controller
do you need the keyboardd connected to the computer or wireless?
also i have a ps5 controller is that compatible?
if is not compatible you can try using ds4windows to use your controller as a xbox controller