Here is the full list of all 12 Windscape achievements.
Gather 10 resources.
Craft 5 items at the different Workstations.
Defeat 5 enemies.
Cut down 5 trees.
Complete 3 quests.
Enter Sky Harbor.
Travel to Maaki Desert.
Find Walters Watermill.
Enter the Mines on Evergreen Island
Enter the spooky graveyard.
Enter the Crypt deep under the Graveyard.
Find the desert temple.