Ubisoft’s (UBI.PA) “Assassin’s Creed” series has been parkouring across history for 11 years. And for its latest foray into the world of historical assassinations, the franchise is heading to Ancient Greece for the first time.

“Assassin’s Creed Odyssey” will see you take on the role of either Alexios or Kassandra, as you fight across land and sea. I played a few hours of “Odyssey” during a demo session ahead of E3, the huge gaming expo — and so far it seems like “Odyssey” will be right up your alley if you like last year’s “Assassin’s Creed Origins.”

But there’s one major change coming to “Odyssey” that should excite even non-fans of the franchise: branching narratives. Think “Mass Effect,” but with infinitely more stabbing.

Reinventing the narrative

“Assassin’s Creed” games have always followed a linear narrative. Basically, the story would always proceed without your having any input beyond finding and completing quests. For “Odyssey,” though, Ubisoft is going a different direction by introducing a branching narrative.

You’ve seen this is games like the “Elder Scrolls” series and most serious role-playing games. Instead of just following along with the story in the passenger seat, you’ll be able to choose how Alexios or Kassandra respond to situations and other characters by selecting one of multiple narrative choices.

Interestingly, rather than providing you with a visual queue to let you know that your responses are either good or bad, usually via blue or red text, “Odyssey” senior producer Marc-Alexis Côté said Ubisoft purposely chose to leave out anything indicating the morality of your choices.

“People tend to gravitate toward good behavior, to being nice with people, which is surprising, because when you talk to people and you look on YouTube and everywhere, you would think it’s quite the opposite,” Côté explained.

“We took the conscious decision of trying to make it more grey. When we indicated the choices, people would gravitate to the one and always stay there, and I’d like them to step back.”

Of course, games like “Elder Scrolls V: Skyrim” don’t indicate your moral choices, so it’s not a completely new concept — but it’s certainly a welcome addition to the series.

Adding the ability to interact with characters as you see fit should change how you approach “Odyssey” compared to prior entries in the franchise.

“It’s making it difficult for me to go and play the older gamers,” Côté said. “We reached a point in development where I just couldn’t go back anymore, because of those dialogue choices, the choices that are there.”