“pop the balloons and build your empire”. Bloons TD 6, also known as (Bloons Tower Defense 6 or BTD6), is the series' most recent installment and current flagship title. Ninja Kiwi is a developer and publisher of BTD6, first launched for Android and IOS on June 13, 2018, and then later on steam for Windows and Macintosh. Bloons TD 6 goal, like that of other tower defense games, notably those in the BTD series, is to prevent enemy balloons, known as Bloons, from traversing a track and taking lives. The player accomplishes this by popping Bloons with a mixture of the monkey-based tower before they can escape. Bloons TD 6 introduces 3D graphics, line of sight mechanics, and additional Bloon types, specifically the purple Bloon, the fortified property, and the Big Airship of Doom. Heroes 5th tier upgrades a third upgrade path, expanded cosmetics, and more as a sequel to Bloons TD 5 and its generational spinoffs.  Bloons TD 6 contains 61 maps as of version 31.0. 20 beginner’s maps, 18 intermediate maps, 13 advanced maps, 10 expert maps, and 1 extra map. The reward for completing a map depends on the map's predetermined difficulty and the game difficulty selected. After the first completion, the payment is significantly reduced. (For example, an extra map played on hard will yield more money than an intermediate map played on easy). BTD6’s Co-ops mode is initially implemented in version 11.0. Each game of Co-Ops can have 2-4 participants. Unlike BTD5, there are a handful of maps where all players share space, especially on maps where peaceable land is insufficient when divided. Players can swap revenue with each other and seek income just like BTD5. The participants can participate in a quick match which allows them to play with anyone in the world, or they can establish private matches using create a match and play match is that the appropriate term. In BTD6 the challenge Editor is used to create numerous challenges. Players can customize the area, difficulty, beginning cash lives, rounds, and other specific factors in the challenge editor to boost the challenge's overall complexity. For example, regular bloons health and speed can be increased or decreased by certain towers, upgrades can be restricted, certain tower quantities can be restricted, and certain CHIMPS rules (in this case continue, hearts lost, money knowledge, powers, selling, but not income) can be implemented. Furthermore, the player can make all ordinary bloons regrowth and Camo. Modes are also available as per participant requirements. There are three modes (Easy, Medium, and Hard). Following are the maps: Beginner: Monkey Medow, Tree stump, Town center, Scrapyard, The Cabin, Resort, Skates, Lotus Island, Candy Falls, Winter park, Carved, Park Path, Alpine Run, Frozen Over, In the Loop, Cubism, Four Circle, Hedge, End of the road, Logs, Intermediate: Quite Street, Bloonarius Prime, Balance, Encrypted, Bazaar, Adora’s Temple, Spring Spring, KartsNDarts, Moon landing, Haunted, Downstream, Firing Range, Cracked, Streambed, Chutes, Rake, Spice islands Advanced: Sunken Columns, X-Factor, Mesa, Geared, Spillway, Cargo, Pat’s pond, Peninsula, High Finance, Another brick, Off the coast, Cornfield, Underground Expert: Sanctuary, Ravine, Flooded valley, Infernal, Bloody Puddles, Workshop, Quad, Dark castle, Muddy puddles