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