Rock Bottom

1. 
   In Too Deep

   Take the elevator down for the first time.
   99%
2. 
   Bar None

   Smelt your first ore into a bar.
   99%
3. 
   Rookie Miner

   Reach player level 10.
   97%
4. 
   Seasoned Digger

   Reach player level 20.
   93%
5. 
   Crystal Clear

   Clear Crystal Caverns and unlock Orc Base II.
   87%
6. 
   Into the Fire

   Descend to the Molten Core.
   85%
7. 
   Embrace the Void

   Reach the Void Caverns.
   76%
8. 
   Rock Bottom

   Reach the deepest layer.
   74%
9. 
   Alloy There

   Forge your first alloy bar at the Foundry.
   85%
10. 
    High Roller

    Spend a total of 100 tokens at the Token Altar.
    91%
11. 
    Fully Loaded

    Max out every skill-tree node.
    63%
12. 
    Best Friends

    Befriend the crab.
    36%
13. 
    Light at the Bottom

    Complete the story.
    69%
14. 
    Human Drill

    Mine 10,000 blocks.
    81%
15. 
    Production Line

    Smelt 100,000 bars.
    74%
16. 
    Stone Tycoon

    Obtain 10,000,000 stone.
    77%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 16 of them.