Full list of all 27 Child of Light achievements worth 400 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox 360.
Collect all Confessions.
Finish the Lemurian Request: Free Trade.
Dethrone the Queen of the Night.
Recover the sun.
Upgrade a skill to its highest level.
Gen joins Aurora's Party.
Recover the moon.
Óengus joins Aurora's Party.
Tristis joins Aurora's Party.
Win a battle without Aurora.
Robert joins Aurora's Party.
Send Oculi to a friend.
Finish 3 Lemurian Requests.
Interrupt 3 foes at the same time.
Finish the Lemurian Request: Achilles's Odyssey.
Norah joins Aurora's Party.
Finn joins Aurora's Party.
Find and open 30 coffers.
Collect 5 deposits of Stardust.
Win a battle against 3 dark creatures without losing any HP.
Achieve level 10 with Aurora.
Devastate 5 foes.
Craft Oculi.
Rubella joins Aurora's Party.
Recover the stars.
Execute 3 Surprise Strikes.
Meet Igniculus.