These are long sequences with 2 big maps: Asgard & Jotunheim. And 5 boss fights.
Recommended level for Asgard is 90+
Recommended level for Jotunheim is 190+
* I did both maps drastically under-leveled. Had trouble with some bosses, but still finally beat them
Spoiler-free & streamlined list of missions:
Ravensthorpe
A Wise Friend
In Dreams
Asgard:
View Above All
Well-Traveled
Defensive Measures
Extended Family
Forging a Bond: Part 1
A Feline's Footfall
Taking Root
Forging a Bond: Part 2
The Big Finish
Jotunheim:
Mistress of the Iron Wood
The Lost Cauldron
A Gift from the Past
A Feast to Remember
The Price of Wisdom
Ravensthorpe
Bound to Fate
Asgard:
Binding Fate
Cheating Fate
Minimal spoilers here: (links courtesy of GamerTweak.com)
*** Spoiler - click to reveal ***You can't start any of these until you complete "A Wise Friend" quest, after you meet Valka on the dock of your settlement (needs to be Level 3).
Then, start the quest called "In Dreams" where you upgrade the house for Valka (800 supplies, 60 raw materials) and collect ingredients for Valka's potion. Drink the potion to mentally transport to Asgard.
Once in Asgard, the main quests are:
View Above All
Well-Traveled
Defensive Measures
Extended Family (Boss fight)
Forging a Bond: Part 1
A Feline's Footfall
Taking Root
Forging a Bond: Part 2
The Big Finish (Boss fight)
You'll then need to travel to Jotunheim.
Once in Jotunheim, the main quests are:
Mistress of the Iron Wood
The Lost Cauldron
A Gift from the Past
A Feast to Remember (Boss fight)
The Price of Wisdom (Boss fight)
After Jotunheim is complete and you Wake Up in Ravensthorpe again, "Bound to Fate" will be your next quest. Drink the Asgard potion again to return there.
thanatos8285 suggests making a manual save before starting this next part, due to possible final boss glitches.
"Binding Fate"
Make your way to an island to speak with Tyr before your final Boss fight with Fenrir. This boss requires a high power level, so be sure to be Power 250+ by the time you try this last bit. Strategy for Fenrir: https://vulkk.com/2020/11/27/how-to-defeat-fenrir-in-assassi...
After defeating the final Fenrir boss, talk to Tyr again to get the last quest of this arc, "Cheating Fate", which is all a cinematic. After that is complete, you should finally have your achievement.
If you have met all quest requirements but the achievement hasn't popped,
Jimmy15 suggests going to your Ubisoft Connect challenges and redeeming any pending rewards. You might get lucky when you go back into the main game.
-- not required for this achievement, but beneficial for 100% completion and for earning skill points, each map contains Mysteries to complete and Wealth to collect and make offerings with (30 each of Ymir's Tears and Ymir's Blood stones) (rewards: 5 skill points each map); neither map contains artifacts or anomalies --