Serve time in Toussaint.
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.
Help unite the warring vineyards and have a wine named in your honor.
Collect all the cards in the Skellige deck.
Obtain a flawless victory in all the competitions during the knights' tourney.
Develop a mutation.
Kill a frozen opponent with a crossbow bolt.
Use all available options for developing Corvo Bianco.
Kill Golyat with a crossbow bolt to his eye.
Travel to the Duchy of Toussaint.
Defeat all the fallen knights and loot their campsites.
Collect all available Ofieri armor and horse gear, and at least one Ofieri sword.
Kill 3 opponents with their own arrows.
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.
Participate in all the activities at the wedding.
Win a round of gwent with a total strength of at least 187.
Buy all the items put on the block at the Borsodis' Auction House.
Kill 20 cows.
Be under the influence of seven potions or decoctions at the same time.
Slide downhill uninterrupted for at least 10 seconds.
Kill the prince cursed into a toad.
Collect all trophies.
Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.
Reach character development level 35.
Finish the game on the "Death March!" difficulty level.
Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.
Finish the game on any difficulty.
Defeat Eredin.
Visit Tir ná Lia and convince Ge'els to betray Eredin.
Take part in the assassination of King Radovid.
Fill all mutagen slots.
Find Ciri.
Complete all witcher contracts.
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.
Complete the contract on Morvudd.
Complete all fistfighting quests in Velen, Skellige and Novigrad.
Defeat Olaf, the Skellige champion of unarmed combat.
Complete the contract on the Woodland Spirit.
Acquire all gwent cards available in the base version of the game.
Defeat Tybalt and win the gwent tournament held at the Passiflora.
Bring all possible allies to Kaer Morhen for the battle against the Hunt.
Complete the contract on Therazane.
Complete the contract on Sarasti.
Destroy all monster nests in the Velen / Novigrad region, or in Skellige.
Ignite the gas produced by a Dragon's Dream bomb using a burning opponent. Do this 10 times.
Have all possible Place of Power bonuses active at the same time.
Win a round of gwent using only neutral cards.
Complete the subplot about choosing Skellige's ruler.
Win all the horse races in the game.
Help Yennefer extract information from Skjall's body.
Resolve the doppler problem in Novigrad.
Perform 10 effective counterattacks in a row without getting hit or parrying.
Attack, counter, cast a Sign and throw a bomb (in any order) in under 4 seconds.
Discover 100 fast travel points.
Find and free Dandelion.
Play three hero cards in one round of gwent and win the match.
Complete the contract on the shrieker.
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 and equip all the elements of one set of witcher gear.
Complete the subplot involving Keira Metz.
Kill 50 opponents using the environment (e.g. swamp gas, insects or objects).
Use the Axii Sign to force one opponent to kill another. Do this 20 times.
Destroy 10 monster nests using bombs.
Find the baron's wife and daughter.
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.
Collect the formulae for 6 different bomb types.
Read 30 books, journals or other documents.
Acquire all the Abilities in one tree.
Learn 12 potion formulae.
Kill at least 5 opponents in under 10 seconds.
Find Yennefer of Vengerberg.