Full list of all 12 Faery: Legends of Avalon achievements worth 200 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox 360.
You have fulfilled Oberon's first mission. You can now discover the other worlds.
You have encountered all of Avalon's inhabitants and you have spoken with all of them.
You have defeated the giant crab and his sidekicks in the dragons' cave.
Meet all the inhabitants in the Faery worlds.
Collect 60 items of equipment.
Save the Tree World.
Save the Flying Dutchman.
Save the Scarabaeid.
Complete all secondary quests on Avalon.
Complete all the secondary quests in the Tree World.
Complete all the secondary quests of the Flying Dutchman.
Complete all the secondary quests of the Scarabaeid.