It depends on many factors. You shouldn't compare yourself to other creators, only yourself and your own goals. That said, those are excellent figures by my standards. Only one of my games ever did better than that. It's not like you're famous, or hoping to make serious money from it. As for getting even more players, in my experience the best marketing is being out there and talking to people. (Not in person, though you can do that too; on social media.) Play other games, read blogs, leave comments. Promote the work of other creators you like, and they'll do the same in turn. Hope this helps!