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.
Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.
Complete all witcher contracts.
Complete the contract on the Woodland Spirit.
Acquire all gwent cards available in the base version of the game.
Ignite the gas produced by a Dragon's Dream bomb using a burning opponent. Do this 10 times.
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.
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Have all possible Place of Power bonuses active at the same time.
Acquire all the Abilities in one tree.
Finish the game on any difficulty.
Reach character development level 35.
Defeat Eredin.
Complete the contract on Morvudd.
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.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Defeat Olaf, the Skellige champion of unarmed combat.
Help Yennefer extract information from Skjall's body.
Win all the horse races in the game.
Complete the subplot about choosing Skellige's ruler.
Win a round of gwent using only neutral cards.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Complete the contract on Therazane.
Discover 100 fast travel points.
Find and free Dandelion.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Find and equip all the elements of one set of witcher gear.
Complete the contract on Sarasti.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Play three hero cards in one round of gwent and win the match.
Resolve the doppler problem in Novigrad.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Destroy 10 monster nests using bombs.
Collect the formulae for 6 different bomb types.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Find the baron's wife and daughter.
Complete the subplot involving Keira Metz.
Complete the contract on the shrieker.
Defeat an opponent in a fistfight without taking any damage.
Read 30 books, journals or other documents.
Kill at least 5 opponents in under 10 seconds.
Learn 12 potion formulae.
Find Yennefer of Vengerberg.
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
Finish the game on the "Death March!" difficulty level.
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.
Participate in all the activities at the wedding.
Defeat all the fallen knights and loot their campsites.
Kill 3 opponents with their own arrows.
Kill 20 cows.
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.
Be under the influence of seven potions or decoctions at the same time.
Serve time in Toussaint.
Be decorated with the Order of Vitis Vinifera.
Obtain a flawless victory in all the competitions during the knights' tourney.
Find all grandmaster diagrams for each witcher school.
Unlock the bonus for equipping all the witcher gear elements from one School.
Be given Aerondight by the Lady of the Lake.
Develop a mutation.
Collect all the cards in the Skellige deck.
Use all available options for developing Corvo Bianco.
Travel to the Duchy of Toussaint.