: Version 18.0 introduced new maps, but players frequently use the "long feature" of the Map Editor (introduced in later versions) to create custom paths. The longest possible path is achieved by dragging path nodes diagonally across the map to maximize travel distance; a single Red Bloon can take approximately 8 minutes to traverse such a path.
For more specific details on version 18.x features, you can check the Official Ninja Kiwi Support or the Ninja Kiwi Twitter for historical patch logs. Bloons TD 6 18.1.2747
: This is the primary "long feature" of the game. After defeating the final round of a standard game mode (e.g., Round 80 for Hard), you can enter Freeplay. This mode is essentially endless, with bloons becoming increasingly faster and stronger ( MOABcap M cap O cap A cap B : Version 18