Developers Hazelight Studios have announced that their latest co-op adventure game, Split Fiction, has sold over four million copies.
This success is not unprecedented, as the studio's previous massive hit, It Takes Two, was extremely successful in the long run. Additionally, Split Fiction has achieved significant concurrent player counts on Steam.
In Split Fiction, players control Mio and Zoe, two “opposite” writers—one writing sci-fi, the other fantasy adventures. They must work together to escape multiple worlds and preserve their memories when they find themselves trapped in their own stories by a machine designed to steal their creative ideas.