Complete a Trial of the Morrigan (Wrath of the Druids).

Reach the max level of Dublin Renown (Wrath of the Druids).

Kill the only snake in Ireland (Wrath of the Druids).

Complete 10 Royal Demands (Wrath of the Druids).

Reach maximum Infamy in the Rebel Missions (The Siege of Paris).

Defeat the Ghost Auroch Boss (The Siege of Paris).

Kill an enemy with a scythe while wearing the full Reaper armor set (The Siege of Paris).

Pat all the cats in Evreux (The Siege of Paris).

Complete 10 Rebel Missions (The Siege of Paris).

Kill 30 enemies with an Atgeir (Dawn of Ragnarök)

Discover all Shelters (Dawn of Ragnarök)

Teleport-Assassinate two enemies and fly away without being detected (Dawn of Ragnarök)

Reach a Muspelheim Monolith (Dawn of Ragnarök)

Knock 10 enemies off of ledges using the Kick of Tyr Ability (The Forgotten Saga)

Find Hel's Majordomo (The Forgotten Saga)

Buy all of Nar's Favors at least once (The Forgotten Saga)

Defeat Hel, ruler of Niflheim (The Forgotten Saga)

Return to Odin's Camp for the first time (The Forgotten Saga)