Full list of all 78 The Witcher 3: Wild Hunt achievements. It takes around 100-120 hours to unlock all of the achievements in the base game on Windows.
The base game contains 52 achievements, and there are 3 DLC packs containing 26 achievements.
Take part in the assassination of King Radovid.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Acquire all gwent cards available in the base version of the game.
Kill 10 opponents by knocking them off somewhere high with the Aard Sign.
Finish the game on any difficulty.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
Finish the game on the "Death March!" difficulty level.
Defeat Eredin.
Visit Tir ná Lia and convince Ge'els to betray Eredin.
Find Ciri.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Complete all witcher contracts.
Complete the contract on Morvudd.
Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.
Acquire all the Abilities in one tree.
Reach character development level 35.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Fill all mutagen slots.
Find and equip all the elements of one set of witcher gear.
Complete the contract on the Woodland Spirit.
Win all the horse races in the game.
Complete the subplot about choosing Skellige's ruler.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Help Yennefer extract information from Skjall's body.
Defeat Olaf, the Skellige champion of unarmed combat.
Discover 100 fast travel points.
Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.
Ignite the gas produced by a Dragon's Dream bomb using a burning opponent. Do this 10 times.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Complete the contract on Therazane.
Have all possible Place of Power bonuses active at the same time.
Complete the contract on Sarasti.
Resolve the doppler problem in Novigrad.
Find and free Dandelion.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
Play three hero cards in one round of gwent and win the match.
Find the baron's wife and daughter.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Destroy 10 monster nests using bombs.
Collect the formulae for 6 different bomb types.
Defeat an opponent in a fistfight without taking any damage.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Complete the contract on the shrieker.
Complete the subplot involving Keira Metz.
Read 30 books, journals or other documents.
Win a round of gwent using only neutral cards.
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
Kill at least 5 opponents in under 10 seconds.
Learn 12 potion formulae.
Find Yennefer of Vengerberg.
Kill 3 opponents with their own arrows.
Slide downhill uninterrupted for at least 10 seconds.
Kill 20 cows.
Finish the "Hearts of Stone" expansion.
Provoke all Iris von Everec's Nightmares into fighting you at the same time and defeat them.
Recreate all of Iris' nightmares in the Painted World.
Be under the influence of seven potions or decoctions at the same time.
Buy all the items put on the block at the Borsodis' Auction House.
Participate in all the activities at the wedding.
Win a round of gwent with a total strength of at least 187.
Kill the prince cursed into a toad.
Defeat all the fallen knights and loot their campsites.
Collect all available Ofieri armor and horse gear, and at least one Ofieri sword.
Serve time in Toussaint.
Be decorated with the Order of Vitis Vinifera.
Be given Aerondight by the Lady of the Lake.
Develop a mutation.
Use all available options for developing Corvo Bianco.
Obtain a flawless victory in all the competitions during the knights' tourney.
Unlock the bonus for equipping all the witcher gear elements from one School.
Find all grandmaster diagrams for each witcher school.
Collect all the cards in the Skellige deck.
Travel to the Duchy of Toussaint.