Android real time multiplayer game

I need an Android game. I would like it designed and built. Android real time multiplayer game needed with minimalistic graphics or good graphics game should be built to handle a decent amount of users, should have an item store with virtual currency game like clash royal or clash of clans i need it done in less than 30 days and would prefer people with prior experience so link that in your proposal and if you are new here i would still like to work with you but you have to show some promising previous work