Sixty Four achievements

Dig down 640 meters deep

Dig down 6400 meters deep

Build 64 machines

Click a cube 6400 times

Find a Hell gem

Find a Chromalit

Get some Void

Reach a depth of 6400m within 6 minutes of placing a fresh Excavation channel

Finish the game without deleting anything for 15 minutes and having less than 15 Containment Silos

Dig down 64 km deep

Have 9 Excavating Channels

Explode the Inverse Chasm