Full list of all 15 Gyromancer achievements worth 250 gamerscore. It takes around 30-35 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 12 achievements worth 200 Gamerscore, and there is 1 DLC pack containing 3 achievements worth 50 Gamerscore.
Acquire 120 awards.
Execute a Gyro Chain.
Hunted down Temperance.
Acquired 100 awards.
Passed the tests of the Stones.
Acquired 75 awards.
Arrived at one truth in Tracks of Night.
Acquired 50 awards.
Acquired 30 awards.
Acquired 15 awards.
Acquired 7 awards.
Acquired 3 awards.
Defeat the Scion at The Four.
Defeated the Dragon Lord at Dragon's Haven.
Defeated the Wolflord at Rivel's Trial.