The Unknown Pack Add-on for EternaMine has 26 achievements.
Go to mine A, the start of your mining adventure
Go to mine B
Go to mine C
Go to mine D
Go to mine E
Go to mine F
Go to mine G
Go to mine H
Go to mine I
Go to mine J
Go to mine K
Go to mine L
Go to mine M
Go to mine N
Go to mine O
Go to mine P
Go to mine Q
Go to mine R
Go to mine S
Go to mine T
Go to mine U
Go to mine V
Go to mine W
Go to mine X
Go to mine Y
Go to mine Z