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