They own mobile games too: Supercell (clash of clans & royale, hay day, brawl stars) is Finnish SYBO Games (Subway Surfers) is Danish Rovio Entertainment (Angry Birds) is Finnish King (Candy Crush & more) is Swedish and RobTop (Geometry dash is Swedish too
The only place to rival them in classic mobile games is Australia which has Halfbrick (Fruit Ninja, Jetpack Joyride) and Hipster Whale (Crossy Road)
Oh and the Nordics are just as successful in mobile gaming with critically acclaimed mobile games: Playdead (Inside and Limbo) are Danish and Frogmind (Badland) is Finnish
I didn’t count it as a mobile game since it’s a port of a pc game, but then again I first played Minecraft on pocket edition so it is definitely an influential mobile game too!