Here is the full list of all 49 Demonicon - there are The Dark Eye achievements.
Played Demonicon through in Nether Hellish difficulty
Played Demonicon through in Hard difficulty
250 potions or poisons used
Destroyed the New Church's Catechism
Acknowledged Seghal and thereby chosen the Gift
Banished guards
Gave Ulev the talisman
50 potions or poisons used
Became member of the Kreutzer Cartel
10 potions or poisons used
Sacrificed Calandra as First Paladin
Sacrificed yourself as First Paladin
Played Demonicon through without using a single healing potion
Returned to Moloch Mountain
Introduced the Catechism to the New Church
Defeated Azaril
Denied Calandra
Slept with Calandra
Acknowledged father and thereby chosen humanity
Freed father from imprisonment
Killed Cassio and sacrificed her blood
Banished bandits
Taifelel defeated
Led the Fernfielders to their fate
Gave Genla the talisman
Defeated Ghamat and the Plague Maw
Defeated the Iribaar's Lily and yourself
Used 200 combat moves
Cast 200 Gift spells
Suffered the pain of Rondra's prescence
Convicted and killed Falk
Successfully dodged two hundred times
Reached Level 7 in one Adventure talent
Raised an attribute to its maximum
Defeated the overpowering Heshthot in the market
Spoken to Borbarad's Council of the Dead
Completed 5 battles without a scratch
Caught the summoner in the Praios temple
Killed 10 enemies solely with Ranged Weapons
Became member of the City Guard
Reached Mastery Rank Four in one talent
Achieved a chain of 24 blows
Killed Borak the Bruiser
Spared the cannibal in Moloch Mountain
Passed a Talent test
Killed the cannibal in Moloch Mountain
Achieved a chain of 12 blows and triggered Demonic Fever
Received the Gift in the tutorial
Learned Chain of Blows