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