Robo Miner is an addictive Android game that lets you dig deep down into the earth to find diamonds, ores, and gems. As you progress deeper into the game, the mines become more complex, and you'll need to upgrade your robot to dig deeper.

The game is set up in the form of mines, each deeper than the one before. You start in a small mine where you can make your first discoveries and earn some cash. As you progress, you'll encounter various types of ore and gems, which can be mined to earn more money.

The game is not without its challenges, though. Falling rocks make it hard to get some ore, and your robot must survive in the face of danger. You'll need to think strategically about where to dig to ensure that you can always find your way back to the surface.

Robo Miner is a free game, though it does contain advertisements. If you want to get rid of the ads, you can upgrade to an ad-free version in-game. The game is also available on PC via STEAM.

Overall, Robo Miner is a fun and addictive game that will keep you entertained for hours.