The second DLC chapter for Little Nightmares is available now. The extra content introduces new enemies and puzzles into the atmospheric horror sidescroller, and some new gameplay mechanics.
From the press release:
Highlighted in an all new video revealed today, the Runaway Kid will have to find and rescue the Nomes, to escape from this gloomy place. These curious creatures have a secret but they can help as well to overcome all obstacles! Where are all these Nomes coming from? What secrets are buried in their nest? This second story introduces more complex puzzle mechanics that will require you to work with the Nomes and a hub-like layout to let you have more freedom for exploration.
Players can pick up the DLC piecemeal from digital storefronts, or get access to it via the Expansion Pass.