Explode the Inverse Chasm
Stare into the abyss 64 times
Get 64 000 000 000 stones
Dig down 64 km deep
Get some Reality
Put two silos together
Get 64 000 000 stones
Get some Void
Honk 64 times for no reason
Get a Hollow Stone
Destroy 64 machines
Get some Celestial Foam
Dig down 6400 meters deep
Find a Chromalit
Find a Hell gem
Build 64 machines
Click a cube 6400 times
Dig down 640 meters deep
Get 64 000 stones
Get Beta-Pylene
Get Qanetite
Dig down 64 meters deep
Get some Elmerine
Have 9 Hell Vaults
Have 9 Excavating Channels
Play for 64 hours
Finish the game without deleting anything for 15 minutes and having less than 15 Containment Silos
Reach a depth of 6400m within 6 minutes of placing a fresh Excavation channel
Get a Hell Gem within the first 64 minutes from the start