https://www.gamespot.com/articles/horizon-zero-dawn-proves-that-single-player-games-/1100-6454406/

Lately, the viability of purely single-player games has been making headlines. Can games that have no multiplayer component survive in today's market where games try so hard to keep people engaged with a steady flow of post-release content? According to a developer from Horizon: Zero Dawn studio Guerrilla Games, single-player games are not going anywhere, though they could become challenged by business considerations.

GameSpot spoke with Guerrilla principal game designer Tim Stobo today at PAX Aus. He pointed out that some of the most highly rated games of 2017 have been purely single-player, listing off titles like his own Horizon: Zero Dawn, along with The Legend of Zelda: Breath of the Wild and Middle-earth: Shadow of War.