Here is the full list of all 20 BrawlQuest achievements.
Craft your first item!
Equip your first mount!
Equip your first pet!
Go sailing
Become a pirate
Kill a mob with more than 1000 HP
Reach Level 2
Reach Level 10
Reach Level 25
Equip full leather armour
Equip full iron armour
Equip full Guardian's armour
Equip full Hero's armour
Craft a spell
Slay the Fire Phoenix
Slay the Frost Entity
Place a Stone Wall in Foundation Forest
Reach Prestige 10
Enchant any item
Kill 1000 mobs