Referring to the ads as a "technical error", Ubisoft has announced that the problem has now been fixed.
An ad for Assassin's Creed Mirage reportedly appeared for a player who opened the map in Assassin's Creed Odyssey on Xbox.
Which is better?
Owners of both games will be receiving free new stories - "A Fated Encounter" in Valhalla and "Those Who Are Treasured" in Odyssey.
Just when you thought you were out, these games pulled you back in with new modes, extra content and "true" endings to unlock.
The patch allows for the Xbox One and PS4 versions to run in 60 FPS when playing via backwards compatibility on current-gen consoles.
An exposé on Ubisoft amid multiple allegations of sexual misconduct says those issues "seep into the company’s games" as well.
Bring your inner Viking to ancient Greece.
The looter shooter is a little over one year old but Ubisoft Massive continues to reinvent the wheel.
Whether it's an intense downpour or lightning trails, these games faithfully channeled the storm.
Get educational with these now free modes until May 21st.
The French publisher has enjoyed immense success these past few years.
You can preload the action RPG on select platforms now.
Just when it feels like the end is near, there's still a long way to go.
They may seem tough but these bosses crumple before decent stealth.
They just can't help themselves, whether they intend to or not.
The worst tendencies of games that we all take for granted.
The streaming service will have 14 more titles before the year ends.
Tons of worlds have been created over the past few years - here are the very best so far.
The update fixes issues with Story Creator Mode, the Fate of Atlantis DLC, and more.