Bloons TD 6

Bloons TD 6 is the sixth main Bloons tower defense game from Ninja Kiwi. You place monkey towers, from dart monkeys to submarines and wizards, along a track and upgrade them down three paths to stop increasingly tough balloons, called bloons, from reaching the exit. Heroes level up during a match, and later rounds bring armoured, camouflaged and boss bloons. The game came out on Steam in December 2018 and still receives regular updates.

The Daily Challenge is a set scenario that every player gets on the same day. Each one is numbered (Daily Challenge 3000 came out on 28 October 2026) and is chosen from the challenges players build in the game's own Challenge Editor. It fixes the map, the difficulty, the starting cash and rounds, and which towers and heroes you may use, sometimes with extra rules. Clearing it gives rewards. The Advanced Challenge is a harder daily scenario. The Co-op Challenge, played with up to three other people, appears on Wednesdays and Sundays and runs for several days.

Because everyone faces the same restrictions, the daily turns into a small puzzle: what combination of the allowed towers can hold every round? Players compare strategies online for each numbered challenge.

It suits tower defense fans and anyone who likes a fixed set of constraints to solve, and it can be played in short sessions on phone, PC or console.