Here is the full list of all 26 DIG IT! - there are A Digger Simulator achievements.
You completed the first mission, like a real rookie.
You completed 5 missions. Good job!
You have completed 10 missions. You're now an experienced digger.
You completed all the missions and can now call yourself Master Digger.
Fantastic! Your first flawlessly completed mission.
Five missions completed perfectly!
Bravo! You have now completed 10 missions perfectly.
You have completed all the missions perfectly. You're the Ultimate Digger.
Congratulations on your first purchase.
You have now bought all the small vehicles. King of the lightweight!
All the medium vehicles are now yours.
You have now acquired all the biggest vehicles. Congratulations!
Congratulations, Iron Master. Noone has more vehicles than you. You've acquired them all.
You bought your first bucket.
You bought five buckets.
You now have all the buckets. Fantastic!
You've moved one ton of dirt. It's a start.
You have now dug up 10 tons of dirt. Keep up the good work!
You have now dug up 100 tons of dirt. Not bad.
You filled up the dump truck 100%
You've dug a 3 ft hole.
You've dug a 15 ft hole.
You've dug a 30 ft hole, and can stare into the abyss.
Congratulations! You just made your first million.
You are now a master of switching tools.
You've dug up one thousand tons of dirt. An impressive milestone!