It's fairly unusual for high-profile games set in the UK to be set outside London.
While indie games - such as the Shropshire-set Everybody's Gone to the Rapture and last year's Barnsley-based laughfest Thank Goodness You're Here! - have ventured further north, bigger games haven't tended to stray beyond the M25.
Jason says the US is about 40% of the video games market, so it's important to appeal to players there, and there's a "natural tendency" to follow the norms.
Being an independent company, he feels, allows Rebellion to do things differently, and Britain offers lots of inspiration for new settings - if you're prepared to look for them.
"The UK, I think, to understand certain aspects of our culture, you've got to dig into it a little bit because we tend to understate things quite a lot."
Rebellion's Head of Design Ben Fisher says the goal was to create a "slightly theme parkish" version of the Lake District with accurate details.
"There are things that, as locals, it's easy for us to forget are unique to Britain, that are unusual," he says.
The team that worked on the game has members from various countries, Ben says, which helped to highlight things the UK natives might have missed.
"The lead artist on the project is from Seattle and was mystified by dry stone walls," says Ben.
He adds the team spent time recreating the structures - which are constructed without the use of mortar - to "capture those local details".
Featuring a local area in a film or TV show can expose a new audience to that place.
"Ultimately, what's incredibly rewarding about this industry is you can put your ideas down and they can be played by people across the globe," Jason says.
"And you know, how wonderful is it to sort of talk about the Lake District to people that live in Africa or Southeast Asia or Canada or wherever it might be.
"That's a kind of form of soft power that very few types of media have."