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