Bloons TD 6 is the final part of the tower defense game series. Here, the gamer must prevent the balloons from reaching the end of the path, placing towers or sharp objects in the process - spikes, explosive pineapples, on which they burst. Some towers are able to hold the balls so that the user can build additional structures for bursting. In-game money is awarded for these actions. The currency is needed to strengthen the towers and purchase new ones.There are 2 classes of spheres in the strategy:
- Standard - have red, black and white, pink and blue, also green, yellow, purple, rainbow, black and white colors, and there are ceramic ones.
- MOAB - airship balls, which belong to the following subclasses: MOAB, BFB - brutal, ZOMG - powerful, DDT - dark titans, BAD - bringing death.
Individual balls have abilities, for example, in camo most fortresses do not open fire, regen - quickly recover, and bursting fortified will take about 2 times longer. Their strength increases at each level. There are heroes - monkeys, each of which has 20 different types of improvements and two abilities to destroy enemy spheres. Bloons Tower Defense 6 received 3D graphics, additional obstacles that block the monkeys' view, monkey knowledge - a special system, hero towers that are improved by the character himself without the user, and a lot of improvements for the fortresses themselves. The user himself chooses the types of fortresses on which the balls should burst. When the sphere reaches the end, the gamer loses a certain number of lives, and when it reaches 0, he loses. The spheres fly in a given direction, but are able to burst, return to the beginning of the path. Towers are the main defense, each of which has a separate power and method of application.