This app was mentioned in 2 comments, with an average of 1.50 upvotes
I remember when I was playing Defender in my HTC Wildfire S probably around 5 years ago, it was my favorite game on phones for a long time.
I played a pretty similiar game on mobile for a while, defender, I think it was called?
https://play.google.com/store/apps/details?id=com.droidhen.defender&hl=en
So yeah, games like this can do well on mobile. It'll depend on how well you market it and if it finds a lot of players, I wouldn't expect too much income, but could be worth the time to carry it over.