Here is the full list of all 76 Mining Mechs achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Reach a depth of 1000m
Make a deal with the devil
Find a Hellstone
Unlock the rhino mech
Dig 2.000 blocks
Pass the airlock
Reach a depth of 900m
Unlock the kangaroo mech
Reach a depth of 800m
Unlock the turtle mech
Unlock the scorpion mech
Unlock the snake mech
Use a booster
Use confetti
Pass the plated stone barrier
Reach a depth of 700m
Use a teleporter
Collect diamond ore
Reach a passive income of $100
Have $1.000.000
Unlock the crane mech
Have $100k cash
Reach a depth of 600m
Collect uranium ore
Deliver 1000 dirt
Collect amethyst ore
Pass the outpost gate
Reach a depth of 500m
Collect gold ore
Reach a depth of 400m
Collect a ruby gem
Dig 1000 blocks
Collect azurite ore
Reach a depth of 300m
Collect an emerald gem
Find cheese
Unlock the beetle mech
Sell $10k worth of ore at once
Collect a sapphire gem
Reach a depth of 200m
Collect cobalt ore
Collect realgar ore
Reach a depth of 100m
Get a mech to max level
Find a treasure chest
Collect jewelry
Find out how high you can fly
Reach mech level 3
Collect trash
Unlock the worm mech
Connect your first mine
Use an explosive
Collect tin ore
Collect copper ore
Complete the Tutorial
Collect silver ore
Sell for a total value of $1337
Dig 5.000 blocks
Bounce on top of the airship
Collect 100 tin
Collect 100 copper
Collect 100 silver
Collect 100 cobalt
Collect 100 realgar
Collect 100 azurite
Collect 100 gold
Collect 100 amethyst
Collect 100 uranium
Collect 100 diamond
Collect 30 sapphire
Collect 20 emerald
Collect 10 ruby
Collect 100 trash
Collect 100 jewelry
Collect 10 treasures