Bethesda’s pre-E3 2015 press conference seemed to come and go like a mach truck with all of its Fallout 4 news, but within it was an unforeseen announcement – a completely free-to-play Fallout spinoff for mobile devices, titled simply Fallout Shelter.

The game was made available immediately on iOS devices (it’s coming to Android later this year), and it appears to be a pretty solid game, for a free-to-play title. Despite this, Bethesda knew they would potentially raise the ire of their fans with the game, according to an interview between Bethesda executive Pete Hines and Gamesindustry.biz.

Hines revealed that if they announced the game last year, they would have probably inadvertently raised an angry mob in protest with it. “If we tried to do this last year without announcing [Fallout 4] and said, ‘Oh we’re doing a game and it’s on mobile and it’s called Fallout Shelter,’ we’d probably get lynched, right? There would be pitchforks at the gate.”

“‘That’s not the Fallout we asked for, you bastards!'”, Hines said. It seems like Nintendo encountered this with the announcement for their Metroid spinoff, Metroid Prime: Federation Force. Nintendo boss Reggie Fils-Aime even confirmed they were aware of the vocal fan outcry regarding the game’s announcement.