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