Here is the full list of all 20 Enoch: Underground achievements.
Complete the tutorial
Reach the refugee camp
Survive the arena
Get out of city streets alive
Defeat the giant
Complete the game
Acquire your first weapon
Acquire unique weapon
Get your first set of armor
Purchase the Cleric robe
Survive your first combat encounter
Kill 150 Hollow
Kill 20 shielded enemies
Kill 50 crawlers
Die 25 times
Consume an essence 40 times
Spend 15000 coins in the store
Open 50 chests
Reveal a well-hidden secret
Use special skill 10 times