Here is the full list of all 50 Shovel Knight Dig achievements.
Defeat Hive Knight without hitting Fleck.
Clean off a Mud-Encrusted Relic without using it.
Use the Gusteo Wand to push an enemy into a hazard.
Defeat a boss with a level 5 Morph Lance.
Finish a world without eating any food.
Finish a level and swing the Shovel Blade fewer than 3 times, including digging.
Electrocute 3 enemies at once.
Emerge unscathed from a battle with any Hexcavator.
Finish off Spore Knight with her own hat.
Acquire a new set of armor.
Defeat an enemy with the Flameo Wand from more than 8 blocks away.
Spend a combined total of 20000 gems in the shops at the surface.
Have two different follow pets at one time!
Defeat 12 enemies in a row using the Shovel Drop without touching the ground.
Finish any stage without taking damage.
Collect all 9 cogs in a world.
Discover 20 secret rooms along the well's sides.
Defeat 5 foes at once using the War Horn.
Help Altius in three locations in the Mushroom Mines.
Hatch 5 creatures from eggs.
Wield 5 relics
Open the Drill Capsule 10 times.
Choose 5 risky paths at the bottom of the well.
Post a score on the Leaderboard.
Find all the secrets in one world.
Dig through the Mushroom Mines.
Defeat an enemy as Tiny Shovel Knight.
Complete the tutorial
Buy your first item.
Have 20000 gems on hand.
Finish the game.
Earn every Shovel Blade technique from Master Argus.
Run over 5 enemies using the Mobile Gear Drill in one go.
Descend 50 blocks in a Coffer of Safekeeping.
Freeze Dozedrake with the Blizzeo Wand.
Deflect a Throwing Trowel to defeat 3 enemies.
Retrieve a money bag using the Reverse Exa.
Defeat 2 enemies with one cast of the Shadow Locket.
Absorb 3 hits using the Bubble Frog.
Defeat 3 enemies using the Rising Dagger without hitting the ground
Finish the game without spending any gems.
Don't collect any gems in one stage.
Use a glass key acquired from a previous world in a new world.
Beat the game without using any relics.
Beat the game within 25 minutes.
Purchase or unlock all relics, armors, and accessories.
Defeat an enemy using 5 different relics.
Finish the game having seen every world in one run.
Disable the Omega Saw.
Hit Master Argus with a surprise attack.