The game already exist on both iphone(+ipad) and android and we believe we want the design more clean/good looking than today.
The original design (by a non-designer) was based on games like starcraft, to draw a young (male?) computer-game-isch audience. It was a bad bet and the game today draws all ages and genders and is a bit more sport/walking/outdoors/compete oriented than it is a computer game.
We have identified the name, the user markers (A generic human, with minor decorations/variations), and the fact that zones are polygons with different colors, to be the most defining design parts of the game. They can absolutely be tweaked though.
Everything else should be less sensitive to complete change.
(Since the user marker is on the icon, logo, animated when taking a zone, etc. this should be kept in mind when tweaking user markers. feel free to redesign the logo as well as a part of one of the screens if you like; the startup/splash-screen. )
Needless to say, the "insane hours 2" font used in the game needs to be changed. Which will probably affect the logo as well.
Some of the images provided are numbered in the comments as a SUGGESTION of which screens you may want to design. HOWEVER, if you try the app you may want to exchange screens according to what you see gives us the most of your ideas.
If we get a good winning design, we will most likely change the app-icon, logo, website, medals, and more stuff that are heavily conformal to the current look. Hence, the winner can expect more work as long as we continue to grow as before in order to afford it.