Heavy is the Rock That Mines the Crown
Obtain Stone for the first time.
Can be found near the surface. Sells for $1.

The Black Lung Begins
Obtain Coal for the first time.
Can be found near the surface. Sells for $2.

Iron Makes a Nation
Obtain Iron for the first time.
Can be found around depth 5m. Sells for $5.

Blood of Cyprus
Obtain Copper for the first time.
Can be found around depth 5m. Sells for $10.

Silver: The Dawn of Currency
Obtain Silver for the first time.
Can be found around depth 10m. Sells for $20.

It's in Your PC, Too
Obtain Gold for the first time.
Can be found around depth 20m. Sells for $50.

Tree Sap with Trauma
Obtain Amber for the first time.
Can be found around depth 50m. Sells for $100.

I Sigh and Oh Too
Obtain Amethyst for the first time.
Can be found around depth 100m. Sells for $250.

The Envy Stone
Obtain Emerald for the first time.
Can be found around depth 200m. Sells for $400.

You Blue Me Away
Obtain Sapphire for the first time.
Can be found around depth 300m. Sells for $500.

Ruby on Rails
Obtain Ruby for the first time.
Can be found around depth 300m. Sells for $800.

Just Squeeze the Carbon
Obtain a Diamond for the first time.
Can be found around depth 500m. Sells for $1000.

Glowing with Potential
Obtain Uranium ore for the first time.
Can be found around depth 500m. Sells for $2000.

Pwnhammer
Obtain Adamantite for the first time.
Can be found around depth 700m. Sells for $4000.

Diggin’ So Hard, Deez Rocks Ain’t Rocks
Obtain Orichalcum for the first time.
Can be found around depth 900m. Sells for $10,000.

Gold Layer
Reach 50m depth.


Amber Layer
Reach 100m depth.


Amethyst Layer
Reach 200m depth.


Emerald Layer
Reach 300m depth.


Ruby Layer
Reach 500m depth.


Uranium Layer
Reach 700m depth.


Orichalcum Layer
Reach 900m depth.

A Roomful
Dig a total of 100m³.


One Golden Pavilion
Dig a total of 1,000m³.


One Statue of Liberty
Dig a total of 10,000m³.


Gettin’ Jiggy wit Dem Ores
Collect all Giant Ores.
Not all the ores are needed for this achievement.

Only giant versions of Gold, Amber, Amethyst, Emerald, Sapphire, Ruby, Diamond, Uranium, Adamantite and Orichalcum are needed.
I generally found that the giant versions of the ore were more common at the depth the next ore was unlocked. For instance, I found more giant Sapphire where Uranium was unlocked.

• Huge Gold can be found around 60m, and it sells for $5000.
  
• Huge Amber can be found around 140m, and it sells for $5000.
  
• Huge Amethyst can be found around 140m, and it sells for $8000.
  
• Huge Emerald can be found around 210m, and it sells for $10,000.
  
• Huge Sapphire can be found around 300m, and it sells for $12,000.
  
• Huge Ruby can be found around 540m, and it sells for $15,000.
  
• Huge Diamond can be found around 540m, and it sells for $20,000.
  
• Huge Uranium can be found around 820m, and it sells for $30,000.
  
• Massive Adamantite can be found around 800m, and it sells for $40,000.
  
• Massive Orichalcum can be found around 900m, and it sells for $70,000.

These estimates were where I found the huge ores in my runs and hence may not be accurate as they may be playthrough dependent.

Easy Come, Easy Go
Obtain a $100 box for the first time.
Can be found near the surface.

Making Bank
Obtain a $1,000 box for the first time.
Can be found around depth 200m.

There is no achievement for $10,000 boxes but they can be found around 260m.

Cash Cow
Obtain a $100,000 box for the first time.
Can be found around depth 920m.

Planet of the Chimpanzees
Wear the Chimpanzee skin.
This skin can be found in the mine at depth 50m. It'll look like this. To equip the skin, head back to the surface and use the lockers beside the workers.



Unity is Strength
Complete all companion collars.
These collars can be found in chests scattered throughout the map. The sonar makes it easier to locate them. They look like this.


Locations:

1. Near the first cave you enter, around depth 24m
   
2. In the mine at depth 200m
   
3. In the same mine as above, at depth 200m
   
4. In a cave at around depth 370m
   
5. In the mine at depth 400m
   
6. In the same mine as above, at depth 400m (In the stairwell covered by rocks)
   
7. In the mine at depth 500m
   
8. In the mine at depth 700m
   
9. In the same mine as above, at depth 700m
   
10. In the mine at depth 800m
    
11. In a cave at around 874m (Connected to the mine)
    
12. In the same cave as above, around 875m (Connected to the mine)
    
13. In the bunker at depth 900m
    
14. In the bunker at depth 1000m
    
15. In the same bunker as above, at depth 1000m

These depth estimates may not be accurate as they may be playthrough dependent.

Jurassic is Parked
Complete the Tyrannosaurus fossil.
These bones can be found both inside and outside the cave systems, with the sonar making it easier to find them.
Achievement seems to only pop for the host in multiplayer.
Locations:

1. T-Rex Skull, in a mine at depth 50m
   
2. T-Rex Spine, in mine at depth 100m
   
3. T-Rex Ribs, in a cave at depth 140m
   
4. T-Rex Left Foot, in a cave at 200m (Connected to mine)
   
5. T-Rex Left Hand, in a cave at depth 265m
   
6. T-Rex Right Hand, in a cave at depth 390m (Connected to mine)
   
7. T-Rex Left Femur, in the same cave at depth 400m (Connected to mine)
   
8. T-Rex Tail/ Caudal Vertebrae, in the mine at depth 400m
   
9. T-Rex Right Femur, in a cave at depth 600m (Connected to mine)
   
10. T-Rex Right Foot, in a cave at depth 700m (Connected to the mine)
    
11. T-Rex Pelvic Bone, in a cave at depth 760m
    
12. T-Rex Sacral Vertebrae, in a cave at depth 1000m (Connected to the bunker)

These depth estimates may not be accurate as they may be playthrough dependent.
Collecting them all gives you a T-Rex statue.

Digging for Change
Collect a total of $10,000 or more.


Rolling in Dirt
Collect a total of $100,000 or more.


Big Dig Energy
Collect a total of $1,000,000 or more.


These 3 achievements are cumulative and do not require you to hold the sums at once.

Looks Au-some
Obtain a Golden Pickaxe for the first time.
This can be obtained in the store as the 10th upgrade.

The Pickmaster
Max out the pickaxe level.
Obtained in the store, the maximum pickaxe level is 20.

All Geared? Keep Digging
Max out the level of all equipment.
The maximum level for the pickaxe, backpack, battery and wire rope is level 20. The maximum level for dynamite is 5.
One of the most time consuming achievements, I would recommend you farm at below 900m, prioritising backpack and pickaxe upgrades for maximum efficiency.

Hiya, Georgie!
Buy an emote from the clown for the first time.
Obtained from the clown, who is located at the top of the staircase, on the rooftop. (Left side of the map)



Turf It Up
Use a Color Spray for the first time.
These can be purchased from this man, at the corner of the map. Once bought, press C to use it.

Get Lost!
Use an emote for the first time.
To do this, press E and select a random emote. Emotes look like this and can be found in the chests in the mines/ caves or bought from the clown.



Sometimes the Diggers Warp
Use a Warp Stone for the first time.
Warp stones can be found in the caves. They look like this and can be easily spotted with sonar.



Jesu, Joy of Man's Desiring
Clear the game.
This can be done by pressing the red button in the very last bunker at the bottom of the map.
Achievement seems to only pop for the host in multiplayer.

• You can use the manhole to teleport around the mines, reducing the need for warp totems. There are manholes at 50m, 100m, 200m, 300m, 400m, 500m, 600m, 700m, 800m, 900m and 1,000m.
  
• Remember to collect warp totems and batteries. The batteries reduce the number of times you have to go back up to the surface, and the totems make the process easier.
  
• The sonar can be found in a chest in the mine at depth 50m, and helps you find more ores, chests, totems, batteries.
  
• Prioritise backpack upgrades as this reduces the amount of times you have to go back up to sell your stuff.
  
• The wire rope can be useful at the start but personally, I upgraded this last.
  
• I personally did not end up using dynamite as I found that it blew up the ores. It can be useful though if you're trying to get as deep as possible fast. It also does damage to players, so beware of using it around teammates.
  
• Beating the game multiple times unlocks more wearable cosmetics (Clown and Spray Guy)

Let me know if I need to add or change anything.
Special thanks to NocRys for running through the game with me <3
Thank you for reading and please give a rating/ award or comment if this guide has helped you!^^