The event will kick off on August 25, 2022, at 2:00 PM EDT, when we’ll reveal the theme during Inside Unreal on both Twitch and YouTube. Submissions will close on September 1, 2022, at 11:59 PM EDT. The itch.io event page will go live, along with the Official Rules, on August 8, 2022, so buckle up and save the date; this one will leave you spinning! We look forward to seeing you there.
Source: Unreal Engine Blog