Atelier Ryza 3: Alchemist of the End & the Secret Key is an adventure game developed by KOEI TECMO GAMES CO and available on PlayStation 4. The game revolves around Ryza and her friends, who embark on a final adventure to save their island by exploring the "roots of alchemy." The stage for this adventure is a vast open field, one of the largest in the Atelier series, made up of multiple maps that are connected seamlessly.

The game offers a variety of keys that can be used in different instances of exploration, synthesis, and battle. Each key has a different effect, making the adventure even more exciting. Additionally, players can reunite with characters from previous games and meet new characters who play a key role in the story. With a total of 11 party members, players can mix and match their favorite characters for a unique adventure experience.