A free program for Android, by golddigersapp.

Gold and Zombies: Idle Merger is an idle tycoon game that will let you mine for gold in the depths of the Earth. If you’re tired of the daily routine, then this is the perfect game for you. It’s time to get out of the office and into the real world! You’ll be able to do whatever you want, with no limits. You’ll be able to explore the world, dig for gold, and even mine in the depths of the Earth. All you have to do is get out of your office and into the real world!

You’ll have to start from scratch. The world is full of treasures, and you’ll have to work hard to get to the most valuable treasures.