Here is the full list of all 30 Dolmen achievements.
Craft all kinds of ranged weapons
Find all hidden Drillers
Reach the Secret Grove
Defeat the Boss Tharvus Kheep and finish the game
Defeat General Vesib
Find 5 hidden Drillers
Kill the Boss Lobodja
Kill Zallan Kheep and finish the second Act
Kill the Ferronightmare
Craft any Boss special weapon
Kill the Corrupted Dementula
Respawn any Boss
Reach Vahani Excavations
Kill a Zimodonte
Kill the Queen Caniptei and finish the first Act
Kill the Twin Ancients
Parry and reflect a ranged attack
Kill the Dementula Boss
Find a hidden Driller
Find your first rare craft material
Level up for the first time
Access the spaceship for the first time
Find your first epic craft material
Kill a veteran enemy
Parry a melee attack
Activate the energy mode for the first time
Kill an enemy
Heal by using energy
Craft all kinds of melee weapons
Craft all kinds of armors