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