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