The game, developed by Bandai Namco, featured a character looking over a ruined cityscape. After this they ran around fighting various monsters, often accompanied by a companion. While it didn't give many details, we did get to see some of the environments and monsters that would be present.
https://www.youtube.com/watch?v=IlTJOT0upbM
The game takes place in the distant future after the collapse of the world from some mysterious disaster. A group of people, known as the Vein, live and fight against The Lost, which is what humanity has been twisted into after the disaster.
The game is a third person action RPG where you'll play as a Reverent who wants to join the Vein. The game will feature tough enemies and grotesque bosses, hoping to provide a challenging game for players. As of right now, however, there aren't too many other details on the game. As we get closer to release more should surface.
Code Vein will be available some time in 2018 for the PlayStation 4, Xbox One, and PC.
If you want to know more about this and other announcements happening at E3 then be sure to check out our E3 2017 Coverage Hub.