After many years of consistent support for BTD 5 (which is still ongoing as I write this), Bloons TD 6 is a modernization and natural progression for the series, for better and worse.

BTD 6 is follows the same formula as previous entries in the series: Place a wide variety of well-armed monkeys to defend their village from invading balloons in classic Tower Defense fashion. Many Bloons need many specific Monkeys to defeat them, however BTD 6 allows for much more versatility adding an entire 3rd pathing for each monkey to choose from. The amount of ways to build a defense are almost endless! On top of that, Heroes are new special monkeys that slowly power up over time becoming stronger BUT you can only place one per game, and you can only bring one with you into a map. The artstyle has completely been overhauled, but honestly it's much smoother and more colorful and matches the cartoonish energy the series has always been known for.
The only major complaint is, like I said earlier, one that comes with modernization. The ludicrous amount of monetization with in-game currencies which give you mid-game boosts, early unlocks, and even cosmetics. Sure, these can be earned in-game, but the game will push these in your face frequently if you find yourself in the daily menu.

Overall, this is an excellent new entry in a long running series that will be supported for a very VERY long time. Always expect new content and to have a good time...or to rage out of your mind if you wish to try the new, daunting CHIMPS mode! Either way, Bloons TD 6 proves that BTD is still the kingpin of the Tower Defense genre.