A little of both.
Several of them were role-playing game commissions. A couple of the games aren't published yet. The Nihon map was for Blossoms are Falling
The Europe maps are for Spione, a cold-war spy game:
There are also maps for Stranger Things and Lanasia, neither of which has been published. The big city map is for Talislanta, just because I'm a fan. The other are variou and sundry game worlds I've played in or stuff I did for fun.