Here is the full list of all 11 Turtle's Quest (Windows) achievements worth 1,000 gamerscore.
Land to Turtle's Beach
Watch the first memory cut scene
Disclose a game changing information
Show you are smart, brave, fast and sneaky.
Make something boom!
Run, run, run, stop!
Achieve a prize by losing
Find all the pieces needed to fix the cart
Complete the Chapter 1
Watch all the titles and the bloopers.
Find it all!