Following their major announcement that The Last Guardian is due out next year, Sony brought out Guerilla Games to preview an entirely new game, Horizon: Zero Dawn.
Details about the game are scarce, but based on the cinematic trailer and the gameplay shown, it seems to be about a post-apocalyptic society in which humans have formed tribes and must fight against organized hordes of robots. The main character is a apparently female hunter from one of the many tribes.
Gameplay shown at the conference flaunted a combat system featuring both archery and up-close melee executions, as well as a multitude of robot enemies including a large boss-type character. No release date has been announced as of yet.