Here is the full list of all 49 Emberlight achievements.
Damage an undead character with healing
Make a party of only one character type
Have 10 physical abilities on a character
Have only 10 arcane abilities on a character
Have only 10 psionic abilities on a character
Get a jackpot at the Gambling Hall
Get 3 jackpots at the Gambling Hall
Get 5 jackpots at the Gambling Hall
Lose at the Gambling Hall
Lose 1000 gold at the Gambling Hall
Lose 5000 gold at the Gambling Hall
Lose 10000 gold at the Gambling Hall
Obtain any trait
Kill the Centaur
Kill the Elf Queen
Kill the Golem
Kill the Watcher
Kill the Goliath
Kill the Ogre
Kill the Fallen Angel
Kill the Lich
Create a corrupted boss
Kill a corrupted boss
Gain corruption lvl 1 on a hero
Gain full corruption
Get 5 of the same ability
Gain persistent corruption level 1
Gain persistent corruption level 2
Gain persistent corruption level 3
Gain persistent corruption level 5
Gain persistent corruption level 10
Gain persistent corruption level 15
Gain persistent corruption level 20
Gain persistent corruption level 25
Gain persistent corruption level 30
Purchase a drink
Purchase all 4 drinks
Attempt the daily challenge
Complete the daily challenge
Earn 10000 pts in the daily challenge
Complete any quest
Buy a 200 gold ability
Buy a 3200 gold ability
Spend 10000 gold at the Ember Order
Heal your party at the Temple
Resurrect a dead party member at the Temple
Win a run without gaining any corruption
Gain an epic or higher ability at the Ember Shard
Use 30 health potions