Full list of all 138 Ring of Pain achievements.
The base game contains 71 achievements, and there are 5 DLC packs containing 67 achievements.
Defeat the Owl on Hard difficulty
Dig up an item in the Graveyard
Complete a run without any Epic or Legendary items equipped
Reach the boss with less than 20% health remaining
Have 100+ max Health
Complete a run in under 18 minutes
Spend 100+ Souls with Soul Spill
Killed by equipping items
Have 60+ Clarity
Have 60+ Speed
Reach Depth 12 having killed all creatures on the way
Reach depth 6 without drinking any potions
Pacify 25 Hounds
Unlock 70 Achievements
Die 250 times
Complete the Light Ending
Have 60+ Attack
Kill 10 creatures with reflect damage
Have 60+ Defense
Complete a run 5 times
Deal 99+ damage in a single attack
Have 5 creatures explode in one turn
Reach Depth 12 on Hard difficulty
Die in Hard Mode
Play the game for 10 hours
Poison 10 Banefangs
Stealth past 10 Banefangs
Complete the Dark Ending
Have 500+ Souls
Kill a Shrieker
Reach the boss on maximum health
Kill a Wretched Amalgam that has 50+ max health
Shuffle 10+ times in a single run
Have a full inventory
Kill 1000 creatures
Die to a boss
Choose your final path
Successfully Stealth past 100 different creatures
Transform 20 creatures
Successfully Stealth past 10 different creatures in a single game
Reach a depth of 12
Reach Depth 6 without attacking a creature
Reduce your max health to 1 with the Fountain of Life
Go from full Health to 1 Health in a single turn
Freeze 50 creatures
Get cursed by potions 3 consecutive times
Kill 20 different types of creatures in a single game
Kill 20 Scroungers
Kill multiple creatures in a single turn 50 times
Poison 50 creatures
Die 25 times
Reach a depth of 6
Kill a Pupper
Parry 50 creatures
Die within 30 seconds of starting a run
Kill a cute, harmless frog
Deal 25+ damage in a single attack
Attack Owl friend
Kill a Bilebag from a distance
Kill 100 creatures
Use a Shrine
Discover 10 new paths
Die with Rainbow Socks equipped
Exit a room without attacking any creatures
Discover a new path
Complete the Tutorial
Complete a run after travelling down a deep pit
Equip 8 different Head slot items in one playthrough
Play 7 Daily Dungeons
Complete a Daily Dungeon
Get a score of over 9000 in a Daily Dungeon
Kill a Stone Shifter in Hard Mode
Finish the game without using any scrolls or spellbooks
Teleport or knockback an explosive creature 50 times
Kill 10 Fire Breeds with an explosion
Kill 10,000 creatures
Intimidate 250 creatures
Accept 100 items from Owl
Poison 300 creatures
Freeze 200 creatures
Make a wish
Kill an Ancient Ice Beast which has more than 30 Defense
Hex a frog
Complete a run without ever equipping a Rare or Epic item
Complete a run with 4 or fewer items equipped
Complete a run without using any rerolls
Complete a run without replacing any equipped items
Kill 10+ creatures in one turn
Heal 50+ with one potion
Kill Sam and spare the companions
Have 20 Poison on yourself
Complete a run without ever equipping an Epic or Legendary item
Complete a run without ever equipping a Common item
Complete a run with 0 or less Attack
Complete a run with 5 or less max Health
Complete a run with 0 or less Defense
Complete a run without discarding any items
Hit Owl with a spoon
Have 2000+ Souls
Get hit by 20 explosions in one run
Petrify 50 creatures
Kill a Spineback while its spines are exposed
Get Poisoned twice in one turn
Destroy 20 equipped items in one run
Complete a run without entering any special dungeons (only use the black exits)
Complete a run with the first item equipped
Transform a Firebead that was about to self-destruct
Escape fatal poison damage by leaving dungeon
Kill all enemies in a dungeon with the rock
Reroll 30 times in a single run
Reach Depth 12 on Medium difficulty
Use 35 Exit cards of any type in a single run
Reach depth 10 without hurting a Gnawling
Get cursed while at 1 health
Complete a run without ever equipping any Body, Head, Arms, Legs or Feet items
Complete a run with only Diviner items equipped
Complete a run with only Soul Kin items equipped
Complete a run with only Stalker items equipped
Complete a run with only Brute items equipped
Complete a run without gaining any stats from Stat Boosts
Complete a run without killing a Scrounger
Kill a boss without any items equipped
Spend more than 200 Souls rerolling a chest and then discard it
Complete a run with your Stealth, Crit and Dodge chance lower than 10%
Kill a boss without ever attacking them directly
Wear items of the same set in the Head, Body, Legs, and Feet slots
Complete a run without taking any explode damage
Complete a run with only Multiclass items equipped
Kill all creatures in a core path dungeon on the first turn
Kill a creature with exactly the same stats as you
Survive a total of 60+ damage in a single Nest or Swamp dungeon