Here is the full list of all 79 Scarlet Tower achievements.
Collect 20 Re-roll dice in a single run
Collect 5 Equipment Banish in a single run
Defeat 1000 Pink Jellyfish in Leviathan's Lair
Win 5 matches using only magic weapons.
Collect 100 pieces of food
Buy something exclusive to Infinite Mode from the Seller
Defeat more than 100,000 enemies
In Endless Mode, make it until nightfall without taking damage
Defeat Vorax
Defeat 1000 Brains in the Plaguelands
Defeat Vorgron
Beat Corruption 10 with the Knife of Darkness in your Arsenal
Survive 1 full day in Endless Mode
Beat Corruption 3 Without Take any Damage.
Slain World Eater on Corruption 10 Leviathan's Lair.
Win the Plaguelands Map in Corruption 9 with Ninn.
Win the Plaguelands Map in Corruption 9 with Lyah.
Win the Plaguelands Map in Corruption 9 with Vylat.
Win the Plaguelands Map in Corruption 9 with the Salamander Familiar.
Win the Plaguelands Map in Corruption 9 with the Hoot Familiar.
Collect 1000 blood gems.
Win the Plaguelands Map in Corruption 9 with Rhys.
Win the Plaguelands Map in Corruption 9 with the Undine Familiar.
Win the Plaguelands Map in Corruption 9 with Veromus.
Slain World Eater on Corruption 10 Plaguelands.
Win the Plaguelands Map in Corruption 9 with Allure.
Defeat Krampus
Win the Plaguelands Map in Corruption 9 with Lance.
Win the Plaguelands Map in Corruption 9 with the Jinn Familiar.
Win a match without taking damage.
Slain World Eater on Corruption 10 Nightpine Valley.
Defeat 30 Silver Werewolf
Beat Corruption 9 before 22 minutes.
Buy 30 flasks from the secret vendor.
Complete the Templar Quest
Create 10 different weapon fusions.
Buy the 12 different flasks from the secret seller.
Slain Octopus on the Ocean.
Slain Angler Fish on Ocean.
Complete the Elementalist Quest
Complete the Paladin Quest
Complete the Necromancer Quest
Defeat 800 Snowman
Complete the Alchemist Mission
Find someone lost in the woods at nighttime.
Defeat 100 Carnivorous Plants
Defeat Puker 5x at Night Time.
Search for the lost egg in the world.
Slain Flesh Demon on Plagulands.
Complete the Bloodmancer Quest
Complete the Blacksmith Quest
Defeat 500 Tentacles
Defeat 500 Slimes
Defeat Death at Corruption Level 1 or higher
Survive for 24 minutes.
Survive for 24 minutes at Woods of Havoc.
Defeat 5.000 Enemies at Night Time.
Defeat 1000 Ghost Witches
Defeat Puker at Night Time
Upgrade Glacial Staff to Rank V
Complete the Priest Quest
Upgrade Thunder Staff to Rank V.
Upgrade Fire Staff to Rank V.
Upgrade Holy Bible to Rank V.
Defeat 100 Goblins
Survive for 12 minutes.
Survive for 15 minutes.
Defeat 300 Ghost Witches
Defeat 300 Red Bees at daytime.
Defeat 30 Slimes
Defeat 100 Zombies
Survive for 2 minutes.
Survive for 5 minutes.
Upgrade Frost Staff to Rank V
Help the Engineer
Beat the Scarlet Tower in Corruption 10