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