DICE today, Supergiant Games founder Amir Rao mentioned that Bastion has sold 1.7 million copies across all available platforms.
Rao's presentation at the annual executive conference explained how Supergiant Games went about porting Bastion from XBLA to PC and mobile. The company's porting team was ... well, it was eight people that composed the entire company. Staggering the releases of Bastion allowed them to keep the quality high and test ideas as the game expanded to other systems.
"We didn't lose an opportunity by not sim [simultaneously] shipping," said Rao. He pointed to his employment experience at EA, and simultaneously shipping Red Alert 3 for PC and Xbox, as an example of split focus.
Bastion's slow multiplatform creep has been successful, with over 90 percent of sales occurring after its original launch month. Rao didn't mention any more upcoming ports of Bastion, but says it's the number one request they receive at Supergiant.