The latest Quantic Dream experiment in interactive storytelling, Beyond: Two Souls was released this week. Gamers who pre-ordered the game from some retailers were promised 30 minutes of "additional content," and now that content has been previewed online.
The add-on is titled "Advance Experiments" and sees protagonist Jodie wading through a variety of test chambers. The 30 minutes promised to gamers seems to be the high-end estimate for how long it will take players to get through the content, since the test is on a 30-minute timer. Also, though it is certainly "additional content" for Beyond, it doesn't appear to advance the story of the game in any significant way - which could turn off fans who came to the game looking for a David Cage story above all else.
The video previews the entire add-on, so those looking to play it spoiler-free will want to give it a pass. The tests appear to be fairly simple puzzles in which Jodie and the metaphysical entity named Aiden must work together to solve.