From Gauntlet to Left 4 Dead - the history of co-op gaming

Alternatively, a friend can take over the secondary forces. This is a great way for two players to work together, or for an experienced player to demonstrate the The Art of War in ways Sun Tzu never even considered. With time-travellers, commandos in crop-tops and giant robot monsters. Clearly, he lacked imagination.

Sadly, all this technology comes with a cost – the feeling of connectedness. Playing with a friend is a very different experience to playing with some random player at the other end of the world, and not having distance between members of a team can often create a feeling of distance that you just don't get with a split-screen.