Here is the full list of all 24 Brut@l achievements.
Kill 10 monsters
Complete the first floor of the dungeon
Make and validate a dungeon of your own using the Dungeon Creator
Play a single player game with each of the four characters, Ranger, Amazon, Mage and Warrior
Collect and wear a full suit of armour
Use a god altar and gain an extra life
Craft any fire enchanted weapon
Craft any frozen enchanted weapon
Craft any nature enchanted weapon
Craft any power enchanted weapon
Craft any magic enchanted weapon
Craft one weapon from each weapon category in a single game
Find and use a wand
Drink all potions in a single game
Craft any talisman
Find and open a secret door
Complete a level in under 120 seconds
Kill 100 monsters in a single game
Kill 250 monsters in a single game
Unlock all skills
Reach floor 13 of the dungeon ... unlucky for some!
Reach floor 26
Collect all 26 basic letters in a single game
Gain more than 20000 loot in a single game