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.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
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.
Win all the horse races in the game.
Finish the game on any difficulty.
Defeat Eredin.
Acquire all the Abilities in one tree.
Take part in the assassination of King Radovid.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Complete all witcher contracts.
Have all possible Place of Power bonuses active at the same time.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Complete the contract on Morvudd.
Reach character development level 35.
Find and equip all the elements of one set of witcher gear.
Defeat Olaf, the Skellige champion of unarmed combat.
Kill 2 monsters you have a contract on without using Signs, potions, mutagens, oils or bombs.
Complete the contract on Therazane.
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.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Help Yennefer extract information from Skjall's body.
Complete the contract on the Woodland Spirit.
Complete the subplot about choosing Skellige's ruler.
Play three hero cards in one round of gwent and win the match.
Complete the contract on Sarasti.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Find and free Dandelion.
Defeat an opponent in a fistfight without taking any damage.
Discover 100 fast travel points.
Win a round of gwent using only neutral cards.
Resolve the doppler problem in Novigrad.
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.
Destroy 10 monster nests using bombs.
Collect the formulae for 6 different bomb types.
Read 30 books, journals or other documents.
Find Yennefer of Vengerberg.
Learn 12 potion formulae.
Kill at least 5 opponents in under 10 seconds.
Kill 3 opponents in one fight using 3 different methods (swords, bombs, crossbow, Signs, etc.).
Kill 5 foes in a fight without taking damage (except for Toxicity) and without using the Quen Sign.
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.
Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Defeat all the fallen knights and loot their campsites.
Buy all the items put on the block at the Borsodis' Auction House.
Participate in all the activities at the wedding.
Slide downhill uninterrupted for at least 10 seconds.
Win a round of gwent with a total strength of at least 187.
Collect all available Ofieri armor and horse gear, and at least one Ofieri sword.
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.
Kill the prince cursed into a toad.
Kill 3 opponents with their own arrows.
Be under the influence of seven potions or decoctions at the same time.
Kill 20 cows.
Serve time in Toussaint.
Be decorated with the Order of Vitis Vinifera.
Obtain a flawless victory in all the competitions during the knights' tourney.
Be given Aerondight by the Lady of the Lake.
Collect all the cards in the Skellige deck.
Unlock the bonus for equipping all the witcher gear elements from one School.
Find all grandmaster diagrams for each witcher school.
Develop a mutation.
Use all available options for developing Corvo Bianco.
Travel to the Duchy of Toussaint.