Games Like Mine Crazy: The Korean Grinder

This is the essence of Korean grinder MMO. This game strongly shows the art of "Grinder" game.
This game has the Superficial Slogan: "Mine Crazy!" And that's mindless, useless, meaningless slogan.
And Ta-da, I'll show you the true Korean grinder.
In game, you'll mine rocks, earn money, and reinforce your pickaxe with that money. Reinforcing is probabilistic, so It sometimes blows your mind. Also there are pets(That will improve your mining), And also there is your Waifu, In our proud Gacha system.
I'd recommend you to achieve 30 level.