Journey goes to a lot of trouble both to make the 'matchmaking' entirely seamless, and to limit player interaction to constructive/team actions. They spent a l

Journey goes to a lot of trouble both to make the 'matchmaking' entirely seamless, and to limit player interaction to constructive/team actions. They spent a lot of time tuning those mechanics with the stated intent of making multiplayer that was cooperative and positive. I think what they achieved is generally quite impressive.