Odyssey (BTD6)

Odyssey is a game mode in Bloons TD 6

Mechanics

The player begins an Odyssey by building a crew consisting of towers, Powers, and one Hero. The player then plays through a series of islands (3 on Easy Odysseys, 4 on Medium Odysseys, or 5 on Hard Odysseys), each consisting of a map, difficulty, mode, and set of challenge rules, using that crew. If the player loses on one island, they can restart from the first round of that island. At any time, the player can also reset the whole Odyssey and start over with a different crew. Upon completing an island, the player progresses to the next one in order (the player cannot enter freeplay), winning by completing all islands.

The player has one set of lives shared between all islands. The player's starting lives also determines their max lives, which prevents the player from gaining more lives than they started with, though the player can recover lives that were lost on an island. If the player completes an island with less lives than they started with, the next island sets the player's max lives to their current lives, effectively making it impossible to recover those lives for the rest of the Odyssey. Impoppable and CHIMPS do not affect the player's lives.

Crew

The player's crew determines which towers and Powers they have access to for the entire Odyssey. On each island, the player can only use tower and power types that they have assigned seats for, and they can only place as many copies of them as they have assigned to each seat. The set of towers and powers the player can choose from, the maximum number of copies of each tower or power that the player can add, and the number of "seats" they can be placed in, all depend on the Odyssey's settings. Filling all seats and/or copies is not required.

• The player has one seat for a Hero.
• The player can choose tower types up to the number of monkey seats available (which can be anywhere from 1 to 16 depending on the Odyssey), and add copies of those towers up to the maximum number of monkeys or maximum copies allowed of that tower type. For example, if the Odyssey has two monkey seats and six max monkeys, the player can fill these with two Dart Monkeys and four Boomerang Monkeys, which means the player can only have up to two Dart Monkeys and four Boomerang Monkeys placed on a map at a time for that Odyssey. The player cannot add another Dart Monkey or Boomerang Monkey to their crew without removing one of the other, since that would exceed their six max monkeys, and they cannot add Bomb Shooters without removing all Dart Monkeys or Boomerang Monkeys, since that would exceed their two monkey seats. The player can only use Insta Monkeys of tower types that have seats, and they count as copies of that tower type when placed.
• The player can choose power types up to the number of power seats available (which can be anywhere from 1 to 8 depending on the Odyssey), and add copies of those powers up to the maximum number of powers or maximum copies allowed of that power type.

Extreme mode

In Extreme mode, any copies of non-Hero towers the player places on an island's map become unusable on later islands. For example, if the player has six copies of Boomerang Monkeys and they place two on the first island, they can only use four Boomerang Monkeys on the second island. Selling a tower does allow the player to use that copy again for that island, but not for later islands.

Odyssey Events

Main article: Odyssey Event

Odyssey Events are weekly singleplayer events played in Odyssey mode. Each event has three versions, one for each difficulty level, and their islands can have custom round sets. The player can choose which difficulty level to play on, which also determines the rewards earned by reaching the end of the Odyssey. The player can replay an Odyssey Event to play on a different difficulty level and obtain the rewards for that version, though Trophies, medals, and Collection Event items are not cumulative.

Odyssey Editor

Main article: Odyssey Editor

The Odyssey Editor is an interface for creating and sharing custom Odysseys. Unlike Odyssey Events, the creator of a custom Odyssey has to choose its difficulty level, and other players cannot choose a different difficulty level when playing it.

Unused content

Custom Rules	—
Rapid Bloons	—
No Return Policy	—
Instructions Not Included	—
Faster. Higher. Stronger.	—
Gotta Go Fast	—
All Camo All The Time	—
All Regrow All The Time	—
Fast Track	—
Odyssey of the Highlander	—
Monkey Teams	—
Extreme Odyssey	—
Slow but Deadly	—
Bloon Rush	—
{0} Bloon Rush	{0} is meant to be substituted with the name of a Bloon.
Mega {0}
Round Mash Up	—
Round Mix Up	—
Entry Mix Up	—