Yes, development was me. I started the project on 4.3 and released it on 4.51.
Mainly it was a project for getting to know the Unreal Engine, but at some point I decided to make a game out of it. For the most part Unreal Engine really makes stuff easy to concentrate yourself on the game itself.
Some materials like landscape materials are from the stylized project and foliage is from the cartoon pack on the market.
After some luck having my game covered on one of the bigger news portals in Japan (link below), I received a big download spike beginning from monday this week.
Tough this spike came to a stop immediately after Google decided to remove my app from Google Play store about 16 hours ago, withouth any warning or email. (it just says removed in my activity protocol)
I had this app in alpha/beta state in the Developer Console for over a month withouth getting any warnings or something…
After I reuploaded it now it is available again, but I am still waiting for an answer from Google. I read on other forums that this seams to be common practice from google, which is unacceptable for small indy developers.