Microsoft almost ushered in the end of isolated single-player gaming.
The Black Rhino, the Leatherback Turtle, the Sumatran Tiger, and the single-player sports video game experience.
All have something in common: they are all inching closer to extinction.
The biggest problem is the fact that unlike the previously mentioned animals, single player video game modes are on no one’s endangered list so that it can be protected and saved. In fact more and more developers and publishers are advocates of single player’s removal from games, as they feel the co-op and multi-player mode is the wave which will sweep next-generation consoles.
Read more - The Extinction of the Single Player Experience?