Full list of all 29 The Falconeer achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox One.
Found all the fortified locations
Discovered all the shrines and temples
Clocked the fastest time on all 5 racecourses
Unlocked all permits in every campaign
Found all Imperial locations
Purchased all 5 falcon types from races
Clocked fastest time on a racecourse
Converted a fortified position for the Pirates
Filled all mutagen slots for your Falcon
Retured to the scene of the Nodbomb blast
Completed the Epilogue
Completed the Oberon's Reach chapter
Destroyed 15 turrets in one mission
Sunk 3 ships in one mission
Bought all chants from the seachantresses
Converted a fortified position for the Mancer Order
Found all Mancer locations
Completed the Shard chapter
Took down 10 air targets in one mission
Completed the Cleftspire chapter
Bought a new type of weapon
Found both biochemists and the weapons trader
Found all 3 seachantresses
Took down 5 air targets in one mission
Found all Civilian Free House locations
Completed the Dunkle chapter
Converted a fortified position for the Imperium
Completed the Prologue
Discovered a shrine or a temple