Atelier Ryza: Ever Darkness & the Secret Hideout is an adventure game that depicts a new "Atelier" world. The game is developed by Gust and is licensed as a full version game. It is available for Play Station 4 and falls under the category of games and subcategory of adventure. The game revolves around a girl named Ryza and her friends who are about to become adults and discover what is most important to them. The game's concept is "True-to-life youths that develop together, even if just a little bit."

The game features an advanced "Synthesis" system and "Location Points." The synthesis system allows players to combine materials to create items visually, and the system allows players to enjoy the experience of developing recipes more than ever before. The game also includes "Location Points" that players can create through synthesis. The game has intense battles with a combination of turn-based command battle and real-time elements. The game allows you to sense the feeling of strengthening bonds with your friends more than ever before. The game's story revolves around Ryza and her friends, who decide to head for the forbidden "island across the shore" as their first exploration trip, where they have a "summer adventure" that they will never forget.