Here is the full list of all 95 UNLOVED achievements.
Win a map in "Arcade Style" Game Mode
Reach Player Level 189.
Kill at least 1500 Faceless on one profile.
Complete "Rotten Only" Challenge
Reach Player Level 168.
Complete "Sound of Silence" Challenge
Kill at least 2000 Clowns on one profile.
Complete "Radiator" Challenge
Complete "Quad Damage" challenge
Complete "Heavy Weapons Only" Challenge
Complete "Pistol Only" Challenge
Win a map in "Arcade Style" Game Mode on Abyss Difficulty
Complete "Radiator" Challenge on Abyss Difficulty
Complete "Quad Damage" Challenge on Abyss Difficulty
Complete "Too Many Fatsos" Challenge on Abyss Difficulty
Deal 900000 damage with the Railgun on one profile.
Complete "Lobotomy" Challenge on Abyss Difficulty
Complete "Sound of Silence" Challenge on Abyss Difficulty
Complete "Pistol Only" Challenge on Abyss Difficulty
Complete "Rotten Only" Challenge on Abyss Difficulty
Complete "Heavy Weapons Only" Challenge on Abyss Difficulty
Reach Player Level 147.
Deal 500000 damage with the Silenced Machine Pistol on one profile.
Kill 1000 Lobotomized Doctors on one profile.
Kill 2500 Butcher on one profile.
Kill 5000 Cutter Demons on one profile.
Collect at least 150 color schemes on one profile.
Deal 500000 damage with the Super Shotgun on one profile.
Reach Player Level 70.
Kill at least 77 Witches on one profile.
Collect at least 75 color schemes on one profile.
Deal 90000 damage with the Railgun on one profile.
Deal 100000 damage with the Kukri melee attack on one profile.
Reach Player Level 25.
Kill at least 150 Faceless on one profile.
Kill 100 Lobotomized Doctors on one profile.
Kill at least 200 Clowns on one profile.
Collect at least 25 color schemes on one profile.
Kill at least 1000 Salem Servants on one profile.
Deal 250000 damage with the Pistol on one profile.
Kill 1000 Demon Nurses on one profile.
Kill 250 Butcher on one profile.
Deal 10000 damage with the Kukri melee attack on one profile.
Kill at least 7 Witches on one profile.
Deal 50000 damage with the Super Shotgun on one profile.
Deal 25000 damage with the Pistol on one profile.
Deal 9000 damage with the Railgun on one profile.
Reach Player Level 15.
Kill 500 Cutter Demons on one profile.
Deal 50000 damage with the Silenced Machine Pistol on one profile.
Kill at least 20 Clowns on one profile.
Kill 10 Lobotomized Doctors on one profile.
Deal 1000 damage with the Kukri melee attack on one profile.
Kill at least 100 Salem Servants on one profile.
Reach Player Level 10.
Experience death and get resurrected by another player.
Kill 25 Butcher on one profile.
Deal 2500 damage with the Pistol on one profile.
Kill 100 Demon Nurses on one profile.
Reach Player Level 5.
Deal 5000 damage with the Silenced Machine Pistol on one profile.
Kill at least 15 Faceless on one profile.
Deal 5000 damage with the Super Shotgun on one profile.
Kill 50 Cutter Demons on one profile.
Reach Player Level 2.
Kill at least 10000 Salem Servants on one profile.
Kill 10000 Demon Nurses on one profile.
Kill at least 777 Witches on one profile.
Reach Player Level 468.
Complete "SMP Only" Challenge
Complete "Shotgun Only" Challenge
Complete "Lights Out" challenge
Complete "Fast Monsters" challenge
Complete "Lobotomy" Challenge
Complete "Flesh Cult" Challenge
Complete "Too many Fatsos" Challenge
Complete "Freakshow" Challenge
Complete "Kill Crew" Challenge
Complete "Hollow Monsters" Challenge
Win a map in "Classic Horror" Game Mode
Win a map in "Hot Mode" Game Mode
Complete "SMP Only" Challenge on Abyss Difficulty
Complete "Shotgun Only" Challenge on Abyss Difficulty
Complete "Lights Out" Challenge on Abyss Difficulty
Complete "Fast Monsters" Challenge on Abyss Difficulty
Complete "Flesh Cult" Challenge on Abyss Difficulty
Complete "Freakshow" Challenge on Abyss Difficulty
Complete "Killcrew" Challenge on Abyss Difficulty
Complete "Hollow Monsters" Challenge on Abyss Difficulty
Win a map in "Classic Horror" Game Mode on Abyss Difficulty
Win a map in "Hot Mode" Game Mode on Abyss Difficulty
Upgrade a Ring to Level 200