A screenshot of the title page for Spokane Valley-developed mobile game "Blast Trivia," releasing for smartphones and other devices in February 2015. Developers Jason Stock and Ben Ritter say they're ...

“There was this new mobile thing, that you could do it yourself,” Stock, 36, said last week from the offices of Firecracker Software , which he founded with friend Ben Ritter and others in 2011. “I’m ...