Full list of all 63 GreedFall (Windows) achievements worth 1,100 gamerscore. It takes around 60-80 hours to unlock all of the achievements in the base game.
The base game contains 58 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 5 achievements worth 100 Gamerscore.
Complete the game in extreme mode
You have decided to save the Alliance from the Guard's coup
You have decided to save Thélème from the Guard's coup
You had to kill the friend who betrayed you
Be in a relationship with Aphra
You have favoured the old world at the expense of your roots
You have decided to abandon the old continent to its sad fate
You have managed to reconcile all the factions and restore balance
You have become one of the new deities of the island alongside Constantin
You have chosen balance, but you miss some of your allies
You managed to unite all factions against Constantin
You have discovered Constantin's actions
Find and set all camp fires
You entered the shrine and spoke to En on míl frichtimen
Pick 20 locks
You have influenced the election to make your favourite become high-king.
Use 50 potions
Hunt 20 animals
You have freed Constantin from the claws of Vinbarr
Kill 600 monsters
Do damage 500 times with a melee weapon
You have passed Glendan's test
Have a good reputation with the Bridge Alliance
Complete 20 secondary quests
Be in a relationship with Siora
Finish all companion quests
Unlock the 3 levels of a talent
Unlock all Magic skills
Unlock all Technical skills
Unlock all the warrior skills
Be in a relationship with Kurt
Kill 300 humans
Craft 10 equipment improvements
Craft 10 alchemical elements
You prevented the Coin Guard from attempting a coup
Poison enemies 100 times
You have discovered the secret of the Congregation and your origins
Have a good reputation with Thélème
Kill a Plains Guardian
Empty 100 containers
Do damage 200 times with traps
Use your assassination skills 30 times
Kill a Swamp Guardian
Unlock the 5 levels of an attribute
Collect ingredients 200 times
Kill a Wood Guardian
Do damage 500 times with an offensive spell
Have a good reputation with the natives
Do damage 300 times with shots
Be in a relationship with Vasco
Kill a Beach Guardian
Succeed in all the challenges of the arena
Kill a Mountain Guardian
Acquire a legendary item
Allocate a new talent point
You have finally taken the path to Teer Fradee
Unlock a new skill
Allocate a new attribute point
Put an end to Aurélia De Vespe's schemes
Find all unique weapons hidden in the Aidág ol creidaw region
Recover all of Aurélia De Vespe’s files
Bring the chest back to Aurélia De Vespe
Kill 20 Egsregatts