The Version 11.0 Title update for Bloons TD 6 has 14 achievements.
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