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