This is wonderfully old school, as these straightforward mining themed games used to be everywhere. Sadly, this doesn't really hold up. It's incredibly linear and repetitive. You work your way through various ores, starting with poo, up through iron, diamond, adamantium, and so on. Upgrades are the basic DPS, crafting better pickaxes, etc. But this starts spinning its wheels super quickly. Idle progress has to be bought and is painfully slow. And once you power through the first 50 ores, they don't even get unique names, it's just Hellstone 1, Hellstone 2, and on and on for the rest of the game. A somewhat cute time capsule of the idle game there used to flood Kongregate and other sites, but very outdated today.