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