Here is the full list of all 36 WAKFU achievements.
The base game contains 28 achievements, and there is 1 DLC pack containing 8 achievements.
Reincarnate in Astrub
Complete the main Astrub quest
Complete the main quest in the Wild Estate
Complete the main quest on Calamar Island
Complete the main quest on Bilbiza
Complete the main quest on Frigost
Complete the main quest on Ohwymi
Complete the main quest on Wabbit Island