: Official versions allow you to participate in 4-player co-op, Boss Events, and Odysseys.
If you are looking for ways to play legally at a lower cost, here are the best options: Bloons TD 6 Free Download (v35.1.6313)
: The game frequently goes on sale for as low as $0.99 or $1.99 during major Steam sales (Summer/Winter) or mobile app store promotions. : Official versions allow you to participate in
: Use apps like Google Opinion Rewards to earn credit that can be used to buy the game legally. Why play the official version? Bloons TD 6 Free Download (v35.1.6313)
: Version 35.1 is an older build; the current game is much further along with new towers, maps, and Paragons.