Here is the full list of all 308 Halls of Torment achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Kill 50 000 Gargoyles
Purchase 40 items from the wellkeeper.
Kill 10 000 creatures made of ice.
Kill 10 000 Beasts.
Kill a total of 100 bosses.
Kill 40 000 Imps.
Survive 20 minutes without regenerating any health. Recovery from Potions or effects is allowed.
One hit kill 1 000 enemies that have 1 000 or more Health with a direct hit from Lightning Strike within one run.
Kill 50 000 Scorched.
[Norseman] Kill 5 000 enemies with the Frost effect in a single run.
[Beast Huntress] Reach Agony III on the Frozen Depths.
Collect a total of 200 000 gold.
[Swordsman] Kill a total of 10 bosses.
Kill a total of 150 elite enemies.
[Shield Maiden] Crit enemies 2 000 enemies with your main attack in one run. Shield Bash doesn't count.
[Exterminator] Apply burn to 200 000 enemies.
[Exterminator] Kill 50 000 enemies.
[Warlock] Take a total of 15 000 damage over all runs.
[Norseman] Reach Agony III on the Frozen Depths.
Kill 10 000 Ghouls.
Deal 10 000 double crits or better with the Phantom Needles.
[Archer] Walk 100 000 meters.
Apply 150 000 effect stacks with Transfixion.
Kill 50 000 Wraiths
Have 300 Arcane Splinter active at the same time.
[Sorceress] Reach Agony III on the Forgotten Viaduct.
Apply debuffs 500 000 times.
[Cleric] Acquire the trait [Metabolism V] in a run.
[Cleric] Reach Agony III on the Haunted Caverns.
Level Up 2 000 times.
Apply 100 000 slow stacks in a single run.
Kill 400 000 enemies in total.
[Swordsman] Reach Agony III on the Haunted Caverns.
Play for 666 minutes.
[Swordsman] Get hit a total of 500 times over all attempts.
[Archer] Enter the Halls of Torment 5 times.
[Archer] Kill 20 000 enemies in one run.
Deal 3 000 000 damage with Hailstorm.
[Shield Maiden] Survive 28 minutes without any defense buffs.
Deal 3 000 000 damage with Frost Avalanche.
Deal 3 000 000 damage with Ring Blades.
[Shield Maiden] Acquire the trait [Parry V] in a run.
[Shield Maiden] Reach Agony III on the Forgotten Viaduct.
[Shield Maiden] Wait for 180 seconds before you start moving. You must move in order to complete the quest.
[Exterminator] Apply burn to 50 000 enemies.
[Exterminator] Reach Agony III on the Ember Grounds.
Deal 2 000 000 damage with Dragon's Breath.
[Exterminator] Reach level 60.
[Exterminator] Deal 3 000 000 fire damage in one run.
Enter the Halls of Torment 20 times and survive at least 5 minutes.
Kill 15 000 enemies in one visit of the Ember Grounds.
Crit enemies 500 000 times.
Kill a total of 10 lord.
Deal 3 000 000 damage with Kugelblitz.
[Sorceress] Block 90 attacks in one run.
Apply electrify 100 000 times.
[Archer] Crit enemies 50 000 times within one run.
Deal 1 000 000 damage with Dragon's Breath.
Deal 3 000 000 damage with Arcane Rift.
Deal 1 500 000 damage with Arcane Rift.
Deal 750 000 damage with Arcane Rift.
[Archer] Wait for 180 seconds before you start moving. You must move in order to complete the quest.
[Warlock] Survive 28 minutes without using your main weapon.
Kill 40 000 Hellhounds.
Kill 40 000 Slimes.
[Warlock] Do not get hit for 5 minutes.
Deal 3 000 000 damage with Spirit Warrior.
[Warlock] Survive 5 minutes with a maxmimum health of 250 or less.
Deal 1 500 000 damage with Frost Avalanche.
[Warlock] Reach Agony III on the Ember Grounds.
[Warlock] Acquire the trait [Channeling V] in a run.
[Warlock] Have 20 Summons at the same active. *attack projectiles do not count
Consume a total of 100 potions.
Purchase 10 items from the wellkeeper.
Deal 1 500 000 damage with Hailstorm.
Deal 750 000 damage with Hailstorm.
[Beast Huntress] Reach level 60.
[Beast Huntress] Deal 5 000 000 ice damage in one run.
Deal 1 500 000 damage with Spirit Warrior.
[Beast Huntress] Deal 1 000 000 frost damage in one run.
[Beast Huntress] Deal 2 000 000 ice damage in one run.
[Beast Huntress] Have your Dog deal 1 000 000 damage.
Deal 750 000 damage with Spirit Warrior.
[Beast Huntress] Reach level 30.
[Beast Huntress] Deal 500 000 ice damage in one run.
Kill 50 000 enemies with effects.
Apply damage effects 500 000 times.
Deal 2 000 000 damage with Flame Strike.
[Norseman] Hit Enemies 20 000 times with the axes. Must be done within one run.
Deal 3 000 000 damage with Lightning Strike.
[Norseman] Deal 5 000 000 physical damage in one run.
[Norseman] Reach level 60.
Deal 1 000 000 damage with Flame Strike.
[Norseman] Deal 2 000 000 phyiscal damage in one run.
[Norseman] Collect 10 Power Ups in one run.
[Norseman] Reach level 30.
[Norseman] Deal 500 000 physical damage in one run.
[Norseman] Hit 30 Enemies with a single Frost Nova.
[Frozen Depths] Defeat the Lord of Hate.
[Frozen Depths] Survive the Frozen Depths until there are only 2 minutes left.
Deal 3 000 000 damage with the Golem.
Play for 333 minutes.
[Frozen Depths] Defeat the Elder Giant.
[Frozen Depths] Kill 7 500 enemies in one visit of the Frozen Depths.
Deal 1 500 000 damage with the Golem.
[Frozen Depths] Survive the Frozen Depths until there are only 10 minutes left.
[Frozen Depths] Defeat the Twisted Construct.
[Frozen Depths] Survive the Frozen Depths until there are only 18 minutes left.
[Frozen Depths] Kill 3 000 enemies in one visit of the Frozen Depths.
[Frozen Depths] Defeat the Basilisk.
[Frozen Depths] Kill 500 enemies in one visit of the Frozen Depths.
[Archer] Reach level 60.
Deal 1 500 000 damage with Kugelblitz.
Deal 3 000 000 damage with Arcane Splinter.
[Archer] Reach Agony III on the Haunted Caverns.
[Archer] Crit enemies 20 000 times within one run.
Kill a total of 50 elite enemies.
Recover 100 000 HP in total
[Sorceress] Apply 20 stacks of electrify on a single enemy.
Deal 750 000 damage with Kugelblitz.
Deal 3 000 000 damage with Meteor Strike.
Deal 1 500 000 damage with Meteor Strike.
[Sorceress] Reach level 60.
Deal 750 000 damage with Meteor Strike.
Deal 1 500 000 damage with Ring Blades.
[Sorceress] Deal 5 000 000 lightning damage in one run.
Deal 500 000 damage with Dragon's Breath.
[Sorceress] Deal 500 000 electrify damage in one run.
[Sorceress] Reach level 30.
[Sorceress] Deal 2 000 000 lightning damage in one run.
[Sorceress] Hit 1 000 Enemies for 500 or more damage in one run. (Main Attack)
[Sorceress] Apply burn to 1 000 enemies in a single run.
[Sorceress] Deal 500 000 lightning damage in one run.
[Sorceress] Increase your movement speed to 11m/s.
[Shield Maiden] Defeat a Lord.
Deal 750 000 damage with Ring Blades.
[Shield Maiden] Deal 3 000 000 damage with the shield bash.
Hit Enemies 40 000 times with Astronomer's Orbs.
[Shield Maiden] Reach level 60.
Deal 3 000 000 damage with Astronomer's Orbs.
Deal 3 000 000 damage with Phantom Needles.
[Shield Maiden] Deal 1 500 000 damage with the shield bash.
Deal 1 500 000 damage with Astronomer's Orbs.
[Shield Maiden] Get hit 500 times in a single run.
Deal 100 000 000 damage in total.
Deal 750 000 damage with Astronomer's Orbs.
Reach level 30.
Level Up 500 times.
[Shield Maiden] Deal 300 000 damage with the shield bash.
Kill 40 000 Skeletons.
Get Astronomer's Orbs to Level 3 to be able to select Ability Upgrades.
[Shield Maiden] Hit 15 Enemies with a single attack. Can't be done with the shield bash.
Defeat the Lord of Despair.
Deal 3 000 000 damage with Radiant Aura.
Deal 750 000 damage with the Golem.
Survive the Forgotten Viaduct until there are only 2 minutes left.
Deal 3 000 000 damage with Transfixion.
Kill 10 000 enemies in one visit of the Forgotten Viaduct.
Enter Forgotten Viaduct and rescue the Cupbearer.
[Cleric] Apply 50 000 debuffs in total.
Defeat the Hydra.
Apply debuffs 50 000 times.
Deal 1 500 000 damage with Transfixion.
Survive the Forgotten Viaduct until there are only 10 minutes left.
Kill 5 000 enemies in one visit of the Forgotten Viaduct.
Deal 750 000 damage with Transfixion.
Defeat the Frost Knight.
Survive the Forgotten Viaduct until there are only 18 minutes left.
Defeat the Wraith Horseman.
Kill 1 000 enemies in one visit of the Forgotten Viaduct.
Collect a total of 20 000 gold.
Deal 1 500 000 damage with Radiant Aura.
Deal 1 500 000 damage with Lightning Strike.
[Warlock] Kill 5 000 Hellhounds in one exploration.
[Warlock] Reach level 60.
[Warlock] Deal 5 000 000 summon damage in one run.
Kill 100 000 enemies in total.
Deal 750 000 damage with Lightning Strike.
Deal 750 000 damage with Radiant Aura.
[Warlock] Deal 2 000 000 summon damage in one run.
[Warlock] Reach level 30.
[Warlock] Deal 500 000 summon damage in one run.
Purchase an item from the Wellkeeper.
Defeat the Lord of Regret.
Survive the Ember Grounds until there are only 2 minutes left.
Crit enemies 50 000 times.
Deal 500 000 damage with Flame Strike.
[Swordsman] Deal 3 000 000 damage in one run.
[Swordsman] Reach level 60.
Defeat the Wyrm Queen.
Deal 1 500 000 damage with Arcane Splinter.
[Swordsman] Regenerate 2 000 HP in one run
Deal 750 000 damage with Arcane Splinter.
[Swordsman] Hit 1 000 Enemies for 300 or more damage in one run. (Main Weapon)
[Swordsman] Deal 1 000 000 damage with the main weapon.
Get Arcane Splinter to Level 3 to be able to select Ability Upgrades.
Enter the Halls of Torment 5 times and survive at least 5 minutes.
Defeat the Lord of Pain.
Kill a total of 1 lord.
[Cleric] Apply 10 stacks of Fragile on a single enemy at once.
Apply damage effects 50 000 times.
[Cleric] Deal 500 000 burn damage in one run.
Survive 28 minutes with your original max health. (Don't use items, blessings or traits)
[Cleric] Reach level 60.
[Cleric] Regenerate 1 500 HP in one run. Only passive regeneration is counted.
Kill a total of 10 bosses.
[Cleric] Deal 5 000 000 magic damage in one run.
[Cleric] Reach level 30.
[Cleric] Deal 1 500 000 magic damage in one run.
[Cleric] Deal 500 000 magic damage in one run.
[Exterminator] Apply burn to 10 000 enemies.
Kill 25 000 enemies in one run.
Survive until there are only 10 minutes left.
[Exterminator] Destroy 200 Objects.
Deal 750 000 damage with Frost Avalanche.
Retrieve 1 item from the Halls of Torment.
Kill 15 000 enemies in one run.
Defeat the Lich.
[Exterminator] Deal 200 000 burn damage in one run.
[Exterminator] Deal 1 000 000 fire damage in one run.
[Exterminator] Walk 8 000 meters in one run.
[Exterminator] Reach level 30.
[Exterminator] Deal 300 000 fire damage in one run.
[Exterminator] Apply 50 or more burn effects at the same time.
Deal 10 000 000 damage in total.
Deal 1 500 000 damage with Phantom Needles.
Consume a total of 10 potions.
Deal 750 000 damage with Phantom Needles.
Rescue the Wellkeeper.
Survive the Ember Grounds until there are only 12 minutes left.
Kill 5 000 enemies in one visit of the Ember Grounds.
[Archer] Crit enemies 5 000 times within one run.
[Archer] Acquire the trait [Quick Hands IV] in a run.
Get Phantom Needles to Level 3 to be able to select Ability Upgrades.
[Archer] Reach level 30.
[Archer] Do not get hit for 3 minutes.
Survive the Ember Grounds until there are only 22 minutes left.
Defeat the Flamedancer.
Kill 1 000 enemies in one visit of the Ember Grounds.
[Archer] Increase your movement speed to 8m/s.
Kill 5 000 enemies in one run.
Collect a total of 300 gold.
Defeat the Skeleton Lord.
Survive until there are only 14 minutes left.
[Swordsman] Acquire the trait [Strength IV] in a run.
[Swordsman] Reach level 30.
[Swordsman] Walk 5 000 meters in one run.
Get Lightning Strike to Level 3 to be able to select Ability Upgrades.
[Swordsman] Hit 20 Enemies with a single attack.
[Swordsman] Deal 200 000 damage with the main weapon.
Defeat the Imp Chieftain.
Survive until there are only 26 minutes left.
Enter the Halls of Torment.
Deal a 25 000 Damage or better hit on a single enemy with Radiant Aura without Fragile effect.
Trigger 10 000 times direct Burn damage with Dragon's Breath. This is done by applying burn on enemies with 20 burn stacks.
Deal 160 Crits with a single Meteor. Overcrits are getting counted.
Have all Ring Blades projectiles travel a distance of 804 672 meters within a single run.
Haave the Golem roll for a total duration of 20 minutes in a run.
Defeat the Void Caller.
Defeat the Village.
Defeat the Twisted Knight.
Kill 6 000 enemies in one visit of the Chambers of Dissonance.
Kill 12 000 enemies in one visit of the Chambers of Dissonance.
Kill 17 000 enemies in one visit of the Chambers of Dissonance.
Defeat the Lord of Discord.
Survive the Chambers of Dissonance until there are only 20 minutes left.
Survive the Chambers of Dissonance until there are only 12 minutes left.
Survive the Chambers of Dissonance until there are only 4 minutes left.
Survive the Chambers of Dissonance in Agony mode until the lord appears.
Deal 10 000 damage with a single hit.
Deal 1 500 000 damage with Grenades.
Deal 3 500 000 damage with Grenades.
Deal 2 000 000 damage with items.
Deal 5 000 000 damage with items.
Reach level 40.
Reach level 80.
Reach Agony III in Chambers of Dissonance
Deal 1 000 000 damage with Morning Star.
Deal 2 000 000 damage with Morning Star.
Deal 5 000 000 damage with Morning Star.
Deal 1 000 000 projectile damage in one run.
Deal 4 000 000 projectile damage in one run.
Deal 10 000 000 projectile damage in one run.
Deal 5 000 000 direct damage with abilities.
Deal 15 000 000 direct damage with abilities.
Deal 50 000 000 direct damage with abilities.
Reach level 50.
Reach level 100.
Reach Agony IV in Chambers of Dissonance
Deal 10 000 000 damage with your main ability.
Deal 100 000 000 damage with your main ability.
Deal 2 000 000 damage with Spectral Fists.
Deal 5 000 000 damage with Spectral Fists.
Deal 10 000 000 damage with Spectral Fists.
Hit 500 enemies for 25 000 damage or more. Overkill damage counts.
Apply Frost 80 000 times with Hailstorm
Hit 40 enemies with a Morning Star for 100 times.
Deal 20 000 000 the dash or dash explosion of Spirit Warriors in one run.
Have Frost Avalanche fire/place projectiles or obstacles 10 000 times per minute.
Reach an average of 10 critical hits per second with the main attack of the Sorceress.
Deal 100 000 damage with a single hit.
Kill 5 000 enemies at full life with a single hit of Arcane Rift.
Deal 1 000 times damage by applying the 20th+ electrify stack through Kugelblitz.
Kill 10 000 Carpas.
Kill 10 000 Constructs.
Kill 10 000 Homunculi.
[Norseman] Deal 10 000 000 frost damage in one run.