Bloons Tower Defense (BTD) is a legendary strategy series where you deploy dart-throwing monkeys and high-tech towers to pop endless waves of colorful "Bloons" before they reach the end of the track. Finding "unblocked" versions is a popular way for players to enjoy these games on restricted networks, like at school or work, typically through third-party gaming sites. CrazyGames +1 Why It’s a Classic Simple but Deep: It starts easy with basic Dart Monkeys, but quickly scales into a complex strategy game involving Super Monkeys, Monkey Aces, and intricate upgrade paths. Evolution of the Series: Since the original Flash game, the series has grown into a massive franchise. Bloons TD 6 is the most recent major entry, featuring 3D graphics and "Hero" units. Variety of Play: Beyond the standard defense mode, there are head-to-head versions like Bloons TD Battles where you send Bloons to sabotage your opponent. Bloons Wiki +3 How to Play Unblocked Most "unblocked" versions of BTD are hosted on HTML5 gaming portals that bypass standard network filters. You can often find the earlier titles, like BTD 1 through 5, on sites such as CrazyGames or dedicated "unblocked" Google Sites. CrazyGames While the latest version, BTD 6 , usually requires a purchase on