Here is the full list of all 52 Confrontation achievements.
Play Nemrod for 5h
Play Melian for 5h
Kill 15 Totem bearers
Play Caan for 5h
Play Nekhys for 6h
Kill 20 Belisarius
Use Exorcism 50 times with Nemrod
Kill 15 Fanatics
Play Dalon for 6h
Play Haeth for 5h
Finish the solo campaign
Play Fera for 5h
Play Taelyn for 4h
Open a character data sheet 100 times
Finish Chapter 3
Play Lothaire for 5h
Use Fireball 50 times with Nekhys
Kill 10 Ritualists
Kill 20 Biopsists
Reach level 40 with a unit
Earn 3,000,000 XP points
Kill 10 Sibyls
Kill 10 Pack leaders
Kill 15 Initiates
Play Zelia for 6h
Let your units fall to the ground in agony 150 times
Play Lanwys for 6h
Use Shadow's kin 50 times with Fera
Kill 100 Wolfen
Use Wave of Fervour 50 times with Lothaire
Reach level 30 with a unit
Finish Chapter 2
Let Zelia fall to the ground in agony 25 times
Suffer 100 stuns
Suffer 50 fears
Kill 100 Orcs
Reach level 20 with a unit
Use Meteor 50 times with Zelia
Finish Chapter 1
Make 50 quick loads
Use Holy Prayer 50 times with Darius
Play Darius for 5h
Reach level 10 with a unit
Kill 20 Dasyatis
Use Divine Favor 50 times with Lanwys
Spend 10 Attribute points
Spend 10 Armor points
Spend 10 Weapon points
Launch the game credits
Kill 100 Scorpions
Kill a Mecasyatis
Make 50 quick saves