Mad Digger(steam key)(region free)

About the game:

Treasure lies hundreds of meters underground, a job for the Mad Digger!

One day, Grandpa Pecos decided to reveal a secret to his grandson: treasure was buried in a former mine. The problem was, it was very deep—several hundred meters underground! Then the grandson remembered his friend, the Mad Digger. After all, only he could handle such a job.
Your task is to delve deeper and deeper underground until you reach the treasure. It's not as simple as it seems, as oxygen runs out with each descent. You need to mine minerals to upgrade your equipment and machinery, and buy grenades and dynamite to speed things up!
The game features collectible cards!
The game costs 42 rubles on Steam.