Full list of all 12 Gnomes Garden achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
For saving the king
For completing all levels with 3 stars
For growing a lily pad
For stopping time
For activating an altar
For constructing a building
For speeding up construction
For restoring the signal fires
For getting rid of a Music Fan
For restoring Stonehenge
For speeding up workers
For restoring a plant