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