Bloons Adventure Time TD

"Developed by Ninja Kiwi and based on their Bloons Tower Defense franchise, Bloons Adventure Time TD features the Bloon hordes invading the Land of Ooo! Finn and Jake will need all the help they can get to stop them. Players can recruit their favorite Adventure Time characters including Princess Bubblegum, Marceline, Ice King and more, as well as the monkeys from the Bloons TD franchise as they travel from kingdom to kingdom to send the Bloons packing. The free-to-play game will be available this summer."

- Cartoon Network News

"Exclusive soft launch access in Australia, New Zealand, Philippines, and Singapore!

The bloons have invaded the land of Ooo and it's up to Finn, Jake and the monkeys to stop them! Bloons Adventure Time TD is an awesome crossover between the award-winning animated series Adventure Time and the #1 Tower Defense game, Bloons TD!

GET YOUR HERO ON!
 * Pop Bloons as your favorite Adventure Time characters like Finn, Jake, Princess Bubblegum, Marceline and more!
 * Recruit brand-new monkey heroes like Captain Cassie, C4 Charlie, and Sai the Shadow!

A NEW ADVENTURE!
 * Play your way through over 15 adventures and 50 maps!
 * Original story featuring the voice cast of the animated series!

MAKE THE BLOONS GO BOOM!
 * Equip your heroes with 200+ weapons and items from Adventure Time and Bloons TD history!
 * Build your defense with over 50 allies including fan favorites BMO, The COBRA, and Lumpy Space Princess!
 * Unleash over 30 awesome, Bloon-shredding powers!"

- Soft-launch App Store description

Bloons Adventure Time TD is a crossover game between Ninja Kiwi's Bloons TD series and Cartoon Network's "Adventure Time" series. It was announced on March 8th 2018 on the Cartoon Network International News website (and later on other online articles) and on March 9th 2018 in the Ninja Kiwi weekly blogs. Nothing much is known, except the game will be free to play on Mobile devices such as iOS and Android, and is expected to be released around August 2018, according to Cartoon Network's news article.

It has been first soft-released on 14th July 2018 to Australia, New Zealand, Philippines and Singapore.

On August 28th It was launched internationally

Heroes
There are a total of 15 heroes that can be obtained by playing the game and clearing adventures.
 * Max, a dart monkey
 * Juggernaut Max, a variation of Max controlling a ballista type crossbow
 * Finn, the hero of Adventure Time
 * Jake, Finn's buddy and sidekick
 * Captain Cassie, a pirate captain monkey
 * Commander Cassie, a military naval variation of Cassie
 * Princess Bubblegum, princess of the Candy Kingdom from Adventure Time
 * Warrior Bubblegum, a variation of Princess Bubblegum
 * Flame Princess, the princess of the Fire Kingdom
 * Ice King, former antagionist from Adventure Time
 * Sai, a ninja monkey
 * Marceline, the vampire queen
 * C4 Charlie, a military bomb monkey
 * Sam, a monkey witch
 * Supermonkey

Premium Heroes
Premium Heroes can only be obtained by paying for them with real-world money. Each Premium Hero also has his/her own adventure that is unlocked with that hero.
 * Dungeon Finn
 * Tuxedo Jake
 * Hunter Marceline

Allies
There are a total of 51 allies in this game, three being obtained from completing a Premium hero adventure, sorted in five different rarities. Most allies can only be equipped by respective heroes. Each hero can equip one ally initially, and can increase to a maximum of four allies at they level up.

Common Allies

 * Laser Butterfly, equippable to Finn, Jake, Max, Marceline/Hunter Marcy, Captain/Commander Cassie and Princess/Warrior Bubblegum
 * Business Men, equippable to everyone
 * Dart Monkey, only equippable to monkeys except C4 Charlie
 * Boomerang Monkey, only equippable to monkeys
 * Banana Guards, only equippable to Princess/Warrior Bubblegum
 * Pirate Crew, only equippable to Captain Cassie
 * Gunter, only equippable to Ice King

Uncommon Allies

 * Super Fans, only equippable to Super Monkey
 * Minipults, only equippable to Juggernaut Max
 * Squadron, only equippable to Commander Cassie
 * Abracadaniel, only equippable to Ice King, Sam and Flame Princess
 * Ricardio, only equippable to Princess/Warrior Bubblegum and Ice King
 * Starchy, only equippable to Princess/Warrior Bubblegum, Marceline/Hunter Marcy, Flame Princess, Juggernaut Max, C4 Charlie and Sai
 * Muscle Princess, only equippable to Finn/Dungeon Finn, Tuxedo Jake, Princess/Warrior Bubblegum, Flame Princess, Ice King, Marceline/Hunter Marcy and Supermonkey
 * Treetrunks, only equippable to Finn/Dungeon Finn and Jake/Tuxedo Jake

Rare Allies

 * BMO, only equippable to Finn/Dungeon Finn, Jake/Tuxedo Jake, Max/Juggeranut Max and Sai
 * Neptr, only equippable to Finn/Dungeon Finn, Jake/Tuxedo Jake, Ice King, Flame Princess and C4 Charlie
 * Sniper Monkey, only equippable to monkeys
 * Banana Man, only equippable to Finn/Dungeon Finn, Jake/Tuxedo Jake, Juggernaut Max, C4 Charlie and Supermonkey
 * Susan Strong, only equippable to Finn/Dungeon Finn
 * Cinnamon Bun, only equippable to Princess/Warrior Bubblegum, Flame Princess and Marceline/Hunter Marceline
 * Lumpy Space Princess, only equippable to Finn/Dungeon Finn, Jake/Tuxedo Jake, Princess/Warrior Bubblegum, Marceline/Hunter Marcy, Ice King, Flame Princess and Supermonkey
 * Slime Princess, only equipapble to Finn/Dungeon Finn, Tuxedo Jake, Princess/Warrior Bubblegum, Marceline/Hunter Marcy, Ice King, Flame Princess and Supermonkey
 * Wildberry Princess, only equippable to Finn/Dungeon Finn, Tuxedo Jake, Princess/Warrior Bubblegum, Marceline/Hunter Marcy, Ice King, Flame Princess and Supermonkey
 * Ghost Princess, only equippable to Finn/Dungeon Finn, Tuxedo Jake, Princess/Warrior Bubblegum, Marceline/Hunter Marcy, Ice King, Flame Princess and Supermonkey
 * Water Nymph, only equippable to Finn, Jake/Tuxedo Jake and Captain/Commander Cassie

Super Rare Allies

 * Wizard Lord, formerly Rare, only equipapble to Ice King, Sam, Flame Princess, Marceline/Hunter Marcy and Supermonkey
 * Rattleballs, only equippable to Finn/Dungeon Finn, Jake, Princess/Warrior Bubblegum, Max/Juggernaut Max and Sai
 * Scorcher, only equippable to Ice King, Flame Princess, Captain Cassie, Sai and Supermonkey
 * Peppermint Butler, only equippable to Princess/Warrior Bubblegum and Marceline/Hunter Marcy
 * Dirt Beer Guy, only equippable to Princess/Warrior Bubblegum, Captain/Commander Cassie, C4 Charlie and Sai
 * Tiny Manticore, only equippable to Finn/Dungeon Finn, Jake/Tuxedo Jake and Max/Juggernaut Max
 * Flame King, only equippable to Flame Princess
 * Lemonhope, only equipapble to Finn/Dungeon Finn, Jake/Tuxedo Jake and Princess/Warrior Bubblegum
 * Monkey Apprentice, only equippable to monkeys
 * Dr. Monkey, only equippable to Max/Juggernaut Max, Sai, C4 Charile, Commander Cassie and Supermonkey
 * Huntress Wizard, only equippable to Finn/Dungeon Finn Ice King and Sam
 * King of Ooo, only equippable to Finn/Dungeon Finn, Jake and Princess/Warrior Bubblegum
 * Maja, only equippable to Princess/Warrior Bubblegum, Marceline/Hunter Marcy and Sam

Epic Allies

 * Technological Terror, only equippable to monkeys
 * COBRA, only equippable to monkeys
 * Shoko, only equippable to Finn/Dungeon Finn and Warrior Bubblegum
 * Martin, only equippable to Finn/Dungeon Finn
 * Ancient Psychic Tandem War Elephant, only equippable to Finn/Dungeon Finn and Jake
 * Moe, only equippable to Finn/Dungeon Finn and Jake/Tuxedo Jake
 * Party God, only equippable to Jake/Tuxedo Jake and Captain Cassie
 * Betty Grof, only equipapble to Ice King and Sam
 * Hudson Abadeer, only equippable to Marceline/Hunter Marceline
 * Vampire King, Premium ally, only equippable to Marceline/Hunter Marcy, Sam and Sai
 * Train Boss, Premium ally, only equippable to Finn/Dungeon Finn, Jake, Max/Juggernaut max, C4 Charlie and Supermonkey
 * Lady Rainicorn, Premium ally, only equipapble to Jake/Tuxedo Jake

Trinkets and Weapons
Each hero is armed with a weapon that falls within one of six categories: Swords, Darts, Wands, Bombs, Guns, or Instruments. Only one may be equipped at any time. Instrument type weapons are unique in that they have a special effect that extends to nearby towers as well as the hero using the weapon. Weapon rarities start at Uncommon. There are 89 weapons in the game, three of which come from the premium heroes.

Trinkets are items that give beneficial effects, like more damage or pierce, to the character that has it. They can also have special properties that can apply when a requirement is met, like a nearby hero or land/water/lava placement. Each hero can equip three trinkets, and can be increased to a max of ten. There are 152 trinkets in the game.

If you don't want an item in your collection, have duplicates, or you have unfavourable items from your wish orbs, you can shard them. Doing so gives you 10, 25, 100, 300 or 1000 shards for Common, Uncommon, Rare, Super Rare and Epic items respectively.

Tracks
There are 50 tracks in the game. 12 of those tracks are from the premium heroes and are not able to be played unless bought. The tracks are in sets in an area in Ooo. For example, Cyclops is a set containing three tracks located in Grasslands. Some of these can unlock things like a new hero or new sets to play on. All sets have a difficulty on them, out of five skulls, indicating how hard it is, with track difficulties too.

Trivia

 * Officially, this game is also considered the first spin-off of Bloons Tower Defense 6 since it uses similar graphics for the Monkeys, Bloons, and MOABs as BTD6. Similar sound effects are also used too.
 * The music appears to be a remix of the BTD6 music, with the title screen music sounding almost the same.
 * This is also the only game so far to not feature the Tack Shooter, Ice Monkey and Bomb Shooter.
 * However, there are some characters that have similar attacks to those towers: Wildberry Princess and Ice King's Ice Bolt upgrade as Tack Shooter, Ice King as Ice Monkey, and C4 Charlie as Bomb Shooter.
 * The game requires iOS 11 or higher to get for Apple devices and Android 5.0 or higher for Android, but also depends on the performance of your device.