Here is the full list of all 83 ADOM (Ancient Domains Of Mystery) achievements.
Unlock every other achievement.
Achieve the Ordinary Chaos God ending.
Complete the game after having killed 95% of every type of non-unique monster in the game.
Retrieve the Chaos Sceptre in the most straightforward way possible, then leave the game.
Complete the game without visiting any locations except the Caverns of Chaos and the Tower of Eternal Flames.
Close the Chaos gate.
Leave the Drakalor Chain after having closed the gate.
Commit the ultimate sacrifice to stop Chaos.
Complete the game within 10000 turns.
Complete the game within 20000 turns.
Complete the game within 40000 turns.
Complete the game before rising above experience level 20.
Slay the Chaos God during your crusade of Order.
Become an avatar of Order.
Enter the bug-infested temple.
Level up to 50 in the wilderness without entering any locations.
Be crowned as a champion of Order.
Unlock 80% of all achievements.
Get the minotaur axe.
Slay the Chaos God during your crusade for Balance.
Win without casting spells.
Become an avatar of Balance.
Obtain the Trident of the Red Rooster.
Be crowned as a champion of Balance.
Level up to level 50 in the Small Cave without visiting any other locations.
Get the Weird Tome.
Win the game with a character obtained by letting fate decide.
Win without ever changing alignment.
Ursurp the throne of Chaos.
Win without using herbs, plants or any related skills.
Score 10 million points.
Score 25 million points.
Score 50 million points.
Obtain the Fire Orb.
Obtain the Air Orb.
Obtain the Water Orb.
Obtain the Earth Orb.
Obtain the Mana Orb.
Finish Riurry's quest.
Successfully rob the Casino shop.
Dealt successfully with the demented ratling.
Complete the cat quest.
Kill the lord of the mummies.
Become the champion of the arena.
Pass through the Small Cave in less than 200 turns.
Slay a dragon. Easy, right?
Be crowned as a champion of Chaos.
Visit every town in Ancardia.
Reach level 100 of the infinite dungeon.
Dual-wield Needle and Sting.
Kill Filk.
Unlock 40% of all achievements.
Buy stuff with a total value of 90,169 gold pieces in shops with one character.
Have Fate smile upon you.
Reach level 50 of the infinite dungeon.
Steal an item worth at least 6,666 gold pieces.
Rise to experience level 50.
Save Khelavaster.
Get a wish from a pool.
Mix a potion of gain attributes.
Find a way to cure Yrrigs.
Successfully learn the 'Wish' spell from a tome.
Went through Living Forest not attacking any trees.
Restore a character from permadeath.
Rise to experience level 40.
Free Griff's Soul.
Offer peace to a monster.
Find a strange item.
Rise to experience level 30.
Successfully rob a shop without resorting to violence.
Pick up the literacy skill during a game.
Gain level 15 in unarmed fighting.
Tame an animal.
Rise to experience level 20.
Recover from being doomed.
Killed monster with alchemical fireball.
Kill an enemy with poison.
Save a puppy from certain doom.
Gain level 5 in unarmed fighting.
Rise to experience level 10.
Rise to experience level 5.
Locate and enter the town of Terinyo.
Die your first death.