I think so and so does this developer of one specific game:
[link] please add your 'like' +1 to the facebook page so this game and the artists and other developers behind it understand that Ubuntu isn't just being used by one or two people but by an entire community.
And even if you don't play games. Like it too, since there are plenty of people this facebook page won't reach, but would love to have games to play.
Should Games be Made for Ubuntu?by #Ubuntu-Artists