London-based VC Hiro Capital has invested $15 million in three game studios. Sweden's Snowprint Studios develops mobile games including role-playing title "Legend of Solgard." Based in Belgium, Happy Volcano is the developer of narrative exploration game "The Almost Gone" and is working on a new cross-platform game. The third investment is in San Franciso-based Double Loop Games, which is currently developing its debut social mobile title. The deals bring Hiro Capital's total investments to 11.