Can Supercell keep the magic of its blockbuster Clash of Clans mobile game going? (interview part two)

Disclosure: The organizers of Slush paid my way to Helsinki. Our reporting remains objective. This is part two of our interview with Supercell. Part one ran Monday. 

HELSINKI — Housed in an abandoned Nokia research building, Supercell’s headquarters is a lesson in itself. The Finnish company has become rich off its Clash of Clans and Hay Day mobile games. It sold 51 percent of its Helsinki-based company to Japan’s SoftBank and GungHo Entertainment for $1.53 billion. That makes Supercell worth about $3 billion, or more than Zynga, the social gaming giant with 2,200 employees.