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