Assassin’s Creed Odyssey’s educational mode, Discovery Tour, will launch Sept. 10, publisher Ubisoft announced Wednesday. That’s actually just before the “fall 2019” launch window that the company gave during E3 2019.

Discovery Tour will be released as a free update for Odyssey owners on all platforms: PlayStation 4, Windows PC, and Xbox One. Just like its Egypt-based predecessor, it will also be available as a stand-alone product on PC, Discovery Tour: Ancient Greece, for $19.99. That experience will be sold on Uplay, Ubisoft’s digital storefront. We’ve asked Ubisoft whether it will be available for purchase via Steam as well, like Discovery Tour by Assassin’s Creed: Ancient Egypt, or if it will be exclusive to Uplay; we’ll update this article with any information we receive.

Assassin’s Creed Odyssey’s game world is a massive, intricately detailed version of ancient Greece, and the Discovery Tour mode will allow you to explore all of it — free from combat or any of the other constraints of the main game. For more on how Discovery Tour works, check out our impressions of the version for ancient Egypt in Assassin’s Creed Origins.

In Odyssey’s Discovery Tour, you’ll be able to travel through ancient Greece’s 29 regions at your leisure, and go on guided tours featuring characters from the game’s story such as Aspasia, Barnabas, and Herodotos. The mode will offer tours at more than 300 in-game stations, covering five fields: philosophy, famous cities, daily life, war, and myths. And at the conclusion of every tour, you’ll get quizzes that Ubisoft described in a news release as “engaging, fun, and rewarding.”

Assassin’s Creed Odyssey was originally released Oct. 5, 2018. The game will be available as a Google Stadia launch title this November. You can check out 15 screenshots from Discovery Tour: Ancient Greece in the gallery.