Full list of all 124 Noobs Want to Live achievements.
The base game contains 111 achievements, and there are 2 DLC packs containing 13 achievements.
Clear Difficulty II 1 time
Bombermeows to exterminate: 50
Synergies to unlock: 4
Silverrings to exterminate: 1000
Big Purrings to exterminate: 3
Angerrings/Devirrings to exterminate: 500
Purrurrings to exterminate: 1000
Mammons to exterminate: 10
Big Angerrings/Devirrings to exterminate: 3
Big Rockies to exterminate:3
Doggo (Time Traveler) to vanquish: 1 (Appears In Difficulty II, III)
Times to kick the bucket: 3
Angerrings/Devirrings to exterminate: 200
Nameless Hero (Time Traveler) to vanquish: 1 (Appears In Difficulty I, II, III)
Purrings to exterminate: 1000
Silverrings to exterminate: 500
Rockies to exterminate: 100
Rockies to exterminate: 200
Purrurrings to exterminate: 200
Purrurrings to exterminate: 500
Bombermeows to exterminate: 20
T-Swift (Time Traveler) to vanquish: 1 (Appears In Difficulty II, III)
Purrings to exterminate: 500
Big Angerrings/Devirrings to exterminate: 1
Times to kick the bucket: 1
Silverrings to exterminate: 200
Clear Difficulty I 1 time
Silverrings to exterminate: 50
Big Purrings to exterminate: 1
Big Rockies to exterminate:1
Synergies to unlock: 1
Clear Difficulty III 1 time
Clear the Ancient Fields 1 time
Silverrings to exterminate: 3000
Purrings to exterminate: 3000
Purrings to exterminate: 5000
Purrings to exterminate: 10000
Rockies to exterminate: 1000
Rockies to exterminate: 3000
Rockies to exterminate: 5000
Angerrings/Devirrings to exterminate: 1000
Angerrings/Devirrings to exterminate: 3000
Angerrings/Devirrings to exterminate: 10000
Purrurrings to exterminate: 3000
Purrurrings to exterminate: 10000
Purrates to exterminate: 20
Purrates to exterminate: 50
Purrates to exterminate: 100
Purrates to exterminate: 500
Purrates to exterminate: 2000
Toxicats to exterminate: 200
Toxicats to exterminate: 500
Toxicats to exterminate: 1000
Toxicats to exterminate: 3000
Toxicats to exterminate: 10000
Nappy Tomcats to exterminate: 200
Nappy Tomcats to exterminate: 500
Nappy Tomcats to exterminate: 1000
Nappy Tomcats to exterminate: 3000
Nappy Tomcats to exterminate: 10000
Devil Rockies to exterminate: 1000
Devil Rockies to exterminate: 3000
Devil Rockies to exterminate: 8000
Devil Rockies to exterminate: 20000
Mammons to exterminate: 30
Mammons to exterminate: 50
Mammons to exterminate: 100
Bombermeows to exterminate: 100
Bombermeows to exterminate: 500
Darth Meowers to exterminate: 1 (Appears In Difficulty III, the Ancient Fields)
Darth Meowers to exterminate: 3 (Appears In Difficulty III, the Ancient Fields)
Big Purrings to exterminate: 5
Big Nappy Tomcats to exterminate: 1
Big Nappy Tomcats to exterminate: 3
Big Nappy Tomcats to exterminate: 5
Big Purrurrings to exterminate: 1
Big Purrurrings to exterminate: 3
Big Purrurrings to exterminate: 5
Big Toxicats to exterminate: 1
Big Toxicats to exterminate: 3
Big Toxicats to exterminate: 5
Big Angerrings/Devirrings to exterminate: 5
Big Rockies to exterminate:5
Big Purrates to exterminate: 1
Big Purrates to exterminate: 3
Big Purrates to exterminate: 5
Great Beauty (Time Traveler) to vanquish: 1 (Appears In Difficulty II, III)
Porky (Time Traveler) to vanquish: 1 (Appears In Difficulty III)
Mr. Tea (Time Traveler) to vanquish: 1 (Appears In Difficulty III, the Ancient Fields)
Agent Dee (Time Traveler) to vanquish: 1 (Appears In Difficulty III, the Ancient Fields)
Miss Shirker (Time Traveler) to vanquish: 1 (Appears In the Ancient Fields)
Times to kick the bucket: 5
Times to kick the bucket: 7
Times to kick the bucket: 10
Times to kick the bucket: 20
Exterminate 5,000 foes in a single game
Have a shield of 500
Have a max HP of 1,000
Synergies to unlock: 10
Synergies to unlock: 30
Synergies to unlock: 54
Clear the Ancient Fields as Nameless Hero
Clear the Ancient Fields as Great Beauty
Clear the Ancient Fields as T-Swift
Clear the Ancient Fields as Doggo
Clear the Ancient Fields as Porky
Clear the Ancient Fields as Darth Meower
Clear the Ancient Fields as Mr. Tea
Clear the Ancient Fields as Agent Dee
Clear the Ancient Fields as Miss Shirker
Acquire all skins
Clear the Ancient Fields/Nightmare as Snappy Bobcat.
Clear the Ancient Fields/Nightmare as Foxy Lady.