Here is the full list of all 29 Dark and Light achievements.
Craft your first magic staff and spell.
Create or Join a House.
Craft a House War Flag
Transform yourself into a beast.
Craft fur from a golden sheep.
Tame a Griffin, Unicorn or Nidhog.
Donate gold coins to vendors to reach Vagabond I status.
Donate gold coins to vendors to reach Aristocrat V status.
Complete all Building Mastery quests.
Complete all Homestead Mastery quests.
Complete all Smithing Mastery quests.
Complete all Magic Mastery quests.
Kill another player.
Slay 50 players with a single character.
Slay an Infernus Dragon or Frost Dragon.
Complete all Hunting Mastery quests.
Complete all Combat Mastery quests.
Tame your first creature.
Slay 100 creatures with a single character.
Complete the "New World" quest chain.
Complete the "Call of Adventure" quest chain.
Place 10 straw dwelling structures with a single character.
Craft fur from a tamed sheep.
Craft 1,000 items with a single character.
Reach Player Level 20.
Reach Player Level 40.
Reach Player Level 60.
Complete the "City Dweller" quest chain.
Slay your first creature.