Free game on Steam called Lazerbait, built for (and in program visualized with) Vive controllers, but works perfectly fine with touch. Pretty simple strategy game: the more planets you have the more ships are produced, move ships from planet to planet to take them over, set up paths so ships automatically group up, try to take over the map. The gameplay could easily work totally flat and with a mouse, but it's still pretty fun to be in the middle of this map, moving around with the grip and selecting planets with pointing+trigger. One thing that's a bit annoying is the distance you can point changes with the scale, so you're forced to pull yourself around the map; scale things down as much as possible and you practically have to grab the planets right in front of you.