Here is the full list of all 64 King's Bounty: Warriors of the North achievements.
You have completed the task of the King of Asvald, and brought peace and tranquility to the island of South Vinland. You now carry the title of Jarl Protector, defender of the Vikings!
You saved the Royal Egg of the dragon Massalatrix, and were awarded the title "Defender of the Ice." Now you are a great friend to the Ice Dragons.
Raise all Valkyries to level 5.
You have completed the task of the Valkyrie Mista, by returning to her the weapon of Tyr, stolen by Fenrir. For this you have earned the title of Favorite of Ragnarok!
Defeat Loki in 10 rounds.
You defeated the giant Loki in a fair fight. No one ever before has beaten him in a contest of strength, so he has offered you his friendship, an honor impossible to refuse.
Perform all major and minor quests in New Kordar.
Get the achievements "Greedy", "Collector", "Heartless", "Amateur Jeweler" and "Bane of Death".
Accumulate at least 10,000,000 gold.
You have entered an alliance with Xeona, leader of the demonic army, and enlisted his support in the upcoming battle with the usurper Prince Consort Guilford.
You have completed the task of Korn Digor, and cleared New Kordar of the undead hordes. You can now rightfully be called "d'hukha marud" -- Border Guard!
You won the Dwarven High Hammer, and now you are known across all the dwarven lands as "bhak udrut" -- the Heavy Striker! It has quite a ring to it!
On Freedom Islands you defeated the necromancer Sirius Pale, and for this the orc Hagyr Bigaxe proclaimed that henceforth you shall be known as "Strong as Hagyr!"
Kael-shot, the first blade, in gratitude for your service to the King of Merlassar, has taken you into the ranks of the elven order of the Blossoming Blades!
You defeated the dragon Glaurmur the Dazzling, and now the "white bird of happiness" will no longer lure unsuspecting travelers into his deadly trap.
The elf Lin Evere has given you a branch of myrtle as a symbol of peace and friendship. Even though you still feel like a stranger in the company of Children of the Star, it is better to have elves as allies than enemies!
You have refused to side with the Prince Consort Guilford, and now he is your sworn enemy. Neither of you shall rest until one of you is put out to sea on a fiery funeral ship!
You have overcome a huge dragon Rikshenassitrax and took from him a powerful artifact called the Tear of the Dragon. This grants you the right to truly be called a Gambler!
You completed the quest of the demon Xeona, and bent the four other demon lords to her will. In recognition of your achievements, Xeona bestowed upon you this title.
You helped the strange fiery creature Zahar defeat his opponent, and he awarded you with this title. Now all creatures made of fire and flames will know that you are a true friend!
Get the achievements "Bane of Life," "Fighter", "Butcher", "Cool Warrior" and "Looking for Trouble".
Win 50 fights without using Rage skills.
You killed the giant Gloomgnaw, and captain of the palace guard, Renli Swann, has granted you this title in recognition of this great achievement.
You cut out the heart from the chest of the evil necromancer Ksaltotun, and his dark blood has forever tarnished your blade. Let this blade be a sign of your courage and strength!
You overcame the magicians of Arlania and took possession of the Staff of Starlight! Woe to anyone who would stand in your way, as your title clearly suggests!
You killed the rebel Selmy Boros and his rebel troops have returned to their barracks. To reward you for your services to Darion, you have been granted this title.
You have completed the task of the Valkyrie Gudrida, by destroying the army of orcs that were threatening your island. This earned you the greenskin nickname "Uck Judg" that is, the Black Death.
Thanks to your efforts, the artist Eye Vaz the Orc finally wrote his masterpiece, and has become reknown throughout the world.
Receive 500,000 damage points in one game.
You helped Captain Tigg and his friends from Undershore Brotherhood. For your service, a special brotherhood council unanimously voted to award you the title of Friend of the Pirates.
Lose 10,000 troops.
You have completed the task of the Valkyrie Hilda, defeating the mighty Veritory the Blood and his army of dragons, and now carry with honor the title of Dragonslayer!
You have completed the task of the Valkyrie Christa, and for your generosity you are now a favorite of the gods.
Destroy 250 enemy armies.
You have completed the task of the Valkyrie Regina, bringning her 10 giant creatures, and can now rightfully be called the Lord of the Giants.
Destroy 25 enemy troops in a row without replenishing your army.
Collect 250 chests during your travels.
Raise all Valkyries to level 3 before entering Demonis.
Gain all the talents in your class tree (at least to level 1).
Receive 15 medals (at least to 1 level).
Collect 75 artefacts and game items.
Defeat Runorm and close the Dark Portal, losing no more than 30% of your forces, or without losing a single troop.
Inflict 500,000 magic damage over the course of the game.
After the battle with Runorm, you were swamped by the Dark Portal and ejected in an unknown place. It is no wonder that the locals look at you askance.
Defeat the Undead Spider and all of its troops in under 15 rounds.
Apply a total of 1,000,000 damage.
You performed a great service for the old pirate Simon Danziker, having found and buried the remains of his cabin boy, and destroying the pack of wild wolves who attacked the poor youth.
You have been awarded honorary membership in the Free Brotherhood of Isterreng, making you a real sea wolf. Yo, ho, ho!
Collect all items of the set.
You have returned Taor to sanity and killed the rebellious vikings of Chukata and Gronnum! Now everyone knows that it is impossible to resist you!
You have passed your trials and became a full-fledged warrior of the village.
After the battle with your brother, you fled your native island, and now your destiny, it seems, is to roam inhospitable islands on the cold and barren sea.
You killed four leaders of the undead and took possession of their weapons. That alone is reason enough to be proud to wear this title!
Get the achievements "Valhalla's Favorite", "High Mage", "Mad Courage", "Confident" and "Reckless Fighter".
Win 50 fights without using the Spell Book.
Raise your character to the maximum level.
Defeat Eric with the fewest allies.
Defeat Guilford in the final battle, without using your Spell Book.
Complete the game on Impossible difficulty.
You helped Ingvar Kopperrad and found the survivors of Fastland. In gratitude, he has awarded your faithfulness with an appropriate title.
You have helped to free the demon Lurfu from the astral captivity in boiling lava, and for this he rewarded you with the title of Astral Rider.
You left the poisoned Ele Taera to die in the cave. Of course you have a heart -- as cold as a piece of granite!
You have helped with the griffin Sirranu with the dragon Massalatrix, and he awarded you this title. Now all the Griffins know that you are their friend!
At the request of the magician-daemon Arkton, you tracked down and killed a strange creature of fire and smoke. Arkton gave you this title in recognition of your services.