Full list of all 150 Bloons TD 6 achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 49 achievements, and there are 17 DLC packs containing 101 achievements.
Deploy a tier 4 monkey tower
Use any Hero Level 10 Ability
Deploy a Hero on a non-tutorial map
1 Non-Tutorial Beginner map Win
Use any Hero Level 3 Ability
Pop 100,000,000 bloons
Destroy 25,000 MOABs
Destroy 10,000 BFBs
Destroy 5,000 ZOMGs
Destroy 5,000 DDTs
Pop 5,000,000 Fortified bloons
Wins on 9 different Beginner maps
Win 1 game on an Intermediate map
Win games on 5 different Intermediate maps
Win 1 game on an Advanced map
Deploy a tier 5 monkey tower
Level any Hero to level 20
Win a game for 4 different Heroes
Use Powers for the first time
Use Powers 25 times
Use Powers 100 times
Apply your first Monkey Knowledge point
Apply 10 Monkey Knowledge points
Unlock all Monkey Knowledge in one branch
Spend 106 Monkey Knowledge points
Win 10 games using only Primary monkeys
Win 10 games using only Military monkeys
Win 10 games using only Magic monkeys
Win 10 games using only Support monkeys
Beat round 100 in Deflation mode
Beat round 100 in Apopalypse mode
Win 25 games with Alternate Bloon Rounds
Win 25 games on Impoppable Difficulty
Win 10 games in Half Cash mode
Win 25 games against Double HP MOABs
Win a game in Reverse mode
Get all medals for a map
Get 36 medals on Beginner maps
Pop 100,000 Purple bloons
Pop 250,000 Camo bloons
Collect at least 12 different Powers
Win 1 Daily Challenge
Win 10 Daily Challenges
Win 100 Daily Challenges
Complete all Daily Challenges in a week
Beat 1 map in CHIMPS mode
Beat 5 maps in CHIMPS mode
Beat 15 maps in CHIMPS mode
Destroy 1,000 BADs
Beat 1 map in Co-op mode
Beat 1 map in 4-player Co-op mode
Beat 1 map in 3-player Co-op mode
Have 4 Heroes on screen at once
Win 10 games on Hard difficulty in Co-op mode
Give 10,000 Cash in Co-op mode
Give 50,000 Cash in Co-op mode
Give 100,000 Cash in Co-op mode
Give 1,000,000 Cash in Co-op mode
Use 10 Powers in Co-op mode
Use 100 Powers in Co-op mode
Use 5 Insta-Monkeys in Co-op mode
Pop 10,000,000 Bloons in Co-op mode
Pat likes hugging Big Bloons even more
You have it set to M for mini, when it should be W for wumbo
Complete a game in CHIMPS Difficulty with only 2 towers
Finish a game with exactly half your starting lives and half your starting cash
Send $500,000 to an ally in co-op in one go
Gain entry to 500 Races
Complete a Race in under 10 minutes
Complete a Race in under 5 minutes
Complete any Race in under 3 minutes
Create or Play 200 Challenges
Win 100 games using a skin of any Hero
Pop 200,000 Bloons on Peninsula
Deal 1 billion damage with the Bloon Master Alchemist
Reveal 10,000 Bloons using Shimmer
Place 50 Monkeys on a map at once
Win a game with only 1 Monkey on screen at any one time in any Hard Difficulty game
Have 1000 lives at once in a single game
Pop 20,000 Rainbow Bloons with Magic Monkeys
When the planets align ever so nicely
B-B-Beat any Expert map on CHIMPS with $40,870 or more spent on 1 Spike Factory
Sacrifice every tower type in the game to the Temple
Complete a game of CHIMPS with more than 2 million damage dealt by one tower
Open a Diamond Crate in any Collection Event
Have one of each T5 sniper in one game of CHIMPS
Have 200 insta-monkeys in your inventory at one time
Open the Daily Chest 365 times
Gain 10 levels for Adora in one round
Bloompa-loompa-doompa-dee-doo!
Complete an Odyssey
Complete a Hard Odyssey
Complete all 3 difficulties of a single Odyssey
Complete 12 different Odysseys
Complete 50 Odysseys
Complete 100 Odysseys
Complete an Odyssey in under 1 hour
Purchase a Trophy Store item
Complete an Odyssey without a Hero
I like 'em big, I like 'em chunkay
Reanimate 250,000 bloons to fight on your side using the Necromancer Wizard
Win any non-CHIMPS/Impoppable game with only 1 life remaining
Use the Alchemist's Transforming Tonic abilities 100 times
Create or Login to your Ninja Kiwi account to cloud save your progress
Host and win 10 Co-op games
Strip the fortifications from Fortified DDTs 3000 times
Submit a Challenge to the Challenge Browser
Pop 1,000,000 Bloons with Dartling Gunners
Spend at least 50 Trophies in the Trophy Store
Use a Tier 5 Insta Monkey. NOTE: even after being used, Instas still count toward your collection!
Use 100 Insta Monkeys
Purchase at least 1 new Limited Time item in the Trophy Store
Upgrade towers 20,000 times
Just because a thing can be done, does not mean that it should be done
Collect 35 achievements
Rope in 3,000 MOAB-Class Bloons using the MOAB takedown ability
Redeploy 1,000 monkey towers using the Support Chinook
Use emotes 100 times in co-op games
Pop 20 Golden Bloons
Pop 100 Golden Bloons
Pop 500 Golden Bloons
Pop 50 Golden Bloons in Magic Monkeys only mode
Win 25 times with Monkey Teams
Win 50 times with Monkey Teams
Win 100 times with Monkey Teams
Defeat a Tier 1 Boss
Defeat a Tier 5 Boss
Defeat a Tier 5 Elite Boss
Upgrade to a Monkey Paragon Tower
Pop 50 Boss Bloons
Paragon of Paragons
Win a boss battle without using a Hero
Beat Spice Islands on Alternate Bloon Rounds with only land towers
Beat Cornfield on CHIMPs without removing any corn
4 x 10^5 (Go into $400,000 of debt)
Get 25,000 Critical hits
Glue 500,000 Bloons
Spend 1,000,000 cash in one round
Win 365 unique daily challenges
Spend 1,000 MM on Continues or Checkpoints
Capture 5 tiles off other players
Capture 50 tiles
Capture 1 of each: Boss, Time Attack, Least Tiers and Least Cash tiles
Have 75 buffs active on your Monkeys at once
Complete a Quest
Acquire 150,000 Beast Handler XP
Earn 5,368,709 experience for any tower
Invest at least $401,626 extra when creating any Paragon
Defeat 5 unique Bosses at Tier 5 (Can be in Boss Event or Challenge Mode)
Win 100 different community submissions (Challenges, Odysseys, Maps)