Full list of all 38 ENDER LILIES: Quietus of the Knights achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Reach level 100
Attain maximum HP
Obtain all relics
Obtain all Findings
Obtain Finding 45
Fully enhance 5 Blighted Spirit
Fully enhance the Umbral Knight
Journey to all maps
Witness Ending C
Restore power to the lost amulet
Attain maximum Prayer Potency
Obtain every Blighted Spirit
Reach every Respite
Witness Ending B
Obtain Findings 24-28
Purify Faden the Heretic
Purify every Blighted hero
Obtain all Chains of Sorcery
Fully enhance a Blighted Spirit
Unleash the Spectral Lance's full power
Purify Knight Captain Julius
Purify Hoenir Keeper of the Abyss
Obtain 15 Blighted Spirits
Witness Ending A
Purify Ulv the Mad Knight
Obtain 10 relics
Reach level 50
Purify Guardian Silva
Obtain 10 Blighted Spirits
Reach 10 Respites
Purify Dark Witch Eleine
Unleash the Giant's Hammer's full power
Purify Gerrod the Elder Warrior
Obtain 5 Blighted Spirits
Reach level 10
Enhance a Spirit for the first time
Obtain a relic
Purify Guardian Siegrid