Overview:
- Estimated achievement difficulty: 4/10
- Offline: 46 (1000)
- Online: 0
- Approximate amount of time to 1000: 30+ Hours
- Minimum number of playthroughs needed: 1 (replay levels to get treasures for upgrades)
- Missable achievements: 0
- Does difficulty affect achievements?: No
- Unobtainable/glitched achievements: None
- Extra equipment needed?: No. But the game be played in local coop up to four players!

Helpful Link:
Video Walkthrough - HERE


Introduction:

Adventure Time: Explore the Dungeon Because I Don't Know! is a Diablo-style top-down RPG hack-and-slasher. Play as Finn, Jake, Marceline, Cinnamon Bun, and other iconic characters from the Adventure Time universe. With voice acting from the stars of the show and beautiful, pixel-style graphics, Adventure Time is awesome for solo play and multiplayer. Up to four players can team up in multiplayer to save the Candy Kingdom by exploring 100 levels of the mysterious Secret Royal Dungeon deep below the Land of Candy Kingdom.

*There is no online multiplayer only local multiplayer.

Step 1: Main Story - Secret Royal Dungeon Floors 1-100

Start be selecting you favorite character, personally I choose Finn, his stats were good all around for me. Continue playing and complete the tutorial. The tutorial is short and shouldn't take more than a few minutes.

Now, Completing all 100 dungeon floors is your main focus here.. Everything else will come as you go.. Just remember to open every treasure chest you come across, to find tokens and familiar, picking up as many treasure pieces you see, picking up every sub-weapon, and eating all the different food types you see. Also don't forget to complete the side quests as soon as you get them.

Step 2: The Nightosphere

The Nightosphere is unlocked after defeating the boss at the end of floor 70.

I would recommend to leave this till you have completed the game. It will much easier with a fully upgraded character and with better tokens. There are four achievements tied to the Nightosphere; The New Frontier, It Came from the Nightosphere, Return to the Nightosphere, The Limit.

For 3/4 Nightosphere achievement will have to be completed in one playthrough. That means you cannot exit the Nighosphere at anytime.

Also if you wait to do this, you will do a few side quest for a NPC by the name of Starchy. Once you have completed all of hes quest you will unlock a token called Heart Sweater; which turns the games difficulty to easy. This will most definitely make the Nightosphere a lot easier. Depending on your skills this should take about 1-2 hours at most to complete.

The Nightosphere playthrough is recommended to be done with at least 2-4 players. See "The Limit" for more details.

Step 3: Mop Up

At this point you should already have completed the game and missing a few more achievements. This will be a good time to go back and complete the side quests from each character, locate any missing tokens or sub-weapons you didn't find during your playthrough, and upgrade all your characters.


Conclusion

Adventure Time: Explore the Dungeon Because I DON'T KNOW! can get a little repetitive.. But is pretty fun at the same time, especially if you play with two or more players. This game is really straight forward, although there are a few time consuming achievements.

[We would like to thank MeonOner and spockroxfaces for this road map]

Adventure Time: Explore the Dungeon Because I DON'T KNOW! Achievement Guide

Show completed achievements
Show secret achievements

There are 46 achievements with a total of 1000 points

  • Complete a Quest for the Princess

    Story related and cannot be missed!

    After completing the tutorial with Princess Bubblegum you will come to a court yard or hub. Talk to Princess Bubblegum to start your first quest. She will ask you to collect and bring back 5 pieces of treasure.

  • Survive a Dungeon segment (exit at Checkpoint)

    A checkpoint happens every five floors. At this point you can either choose to continue onto the next floors or exit back to the hub. Simply agree to return to the Candy Kingdom Courtyard or hub and the achievement unlocks.

  • Purchase something from Choose Goose

    You will need to fist rescue Choose Goose. To do this you must reach floor 10 and defeat the boss. Choose Goose will then appear in the Candy Kingdom Courtyard.

    Choose Goose is located left of the stairs. Simply buy any item, the cheapest items would be bamboo pole or food. Items to change everyday.

  • Upgrade Rowdiness once

    Rowdiness increases the damage of your attacks.

    To upgrade your characters rowdiness talk to Muscle Princess. You can upgrade each characters rowdiness three times.

    • Rowdiness upgrade 1 - Cost = 60
    • Rowdiness upgrade 2 - Cost = 200
    • Rowdiness upgrade 3 - Cost = 500
  • Upgrade Thumps once

    Thump increases you total health (adds and extra heart).

    To upgrade your characters thump talk to Me.Cupcake. You can upgrade each characters thump three times.

    • Thump upgrade 1 - Cost = 30
    • Thump upgrade 2 - Cost = 125
    • Thump upgrade 3 - Cost = 300
  • Upgrade Focus once

    Focus decreases the charge time of your charge attack.

    To upgrade your characters focus talk to Lady Unicorn. You can upgrade each characters focus two times.

    • Focus upgrade 1 - Cost = 100
    • Focus upgrade 2 - Cost = 400
  • Upgrade Imagination once

    Imagination increases your characters special attack meter.

    To upgrade your characters imagination talk to Neptr. You can upgrade each characters imagination two times.

    • Imagination upgrade 1 - Cost = 175
    • Imagination upgrade 2 - Cost = 700
  • Max out Finn's stats

    Simply max out all of Finn's Stats.

    TIP: Maxing out character stats will be a grind, but it is do able. The most effective way so far to earn enough treasure is to replay dungeon floors 80-85 or 90-95. You will get around 800-900 treasures and maybe even more if you equip specific treasure tokens.

  • Max out Jake's stats

    Simply max out all of Jakes's stats.

    See "Finn the Human" for more details.

  • Max out Marceline's stats

    Simply max out all of Marceline's stats.

    See "Finn the Human" for more details.

  • Max out Cinnamon Bun's stats

    Simply max out all of Cinnamon Bun's stats.

    See "Finn the Human" for more details.

  • Use a Special Attack

    This can be done during the tutorial, but is missed there it can be done at any point during the game. To use a characters special attack you will need fill up the special attack meter. Once its full press to use it. Every character has a different special attack.

  • Perform a perfect block

    This can be done during the tutorial, but if missed there it can be done at any point during the game. To perform a perfect block press just before an enemy attacks you.

  • Grab 50 treasures worth of Treasure in a Treasure Floor

    These seem to happen random. I was able to do this around floor 41 - 50. These are special timed floors. You will get 60 seconds to collect as much treasure as possible. There are no enemies in a treasure floor. Mainly focus on collecting as many pieces of treasure you can. Going for gold bricks helps a lot. Avoid opening any treasure chest as you waste a lot of time opening one. Also having the Speedy Feet token helps.

  • Survive a Monster Floor

    These seem to be at random. I was able to do this around floor 37-39. These are special timed floors. You will need to survive for 60 seconds. You can choose to stick around and fight the enemies until the time is over or simply find the stairs and exit the floor.

  • Upgrade a Sub-Weapon to a stronger Sub-Weapon

    This can be done during one of the quests given by Tree Trunks. She will ask you to retrieve a Cursed Sword from the Ancient Ruins (which starts at Level 41). Once you find the Cursed Sword (I found mine in a chest), keep it equipped, and then she will upgrade it to another weapon once you return to her to turn in the quest.

  • Eat every different Food item at least once

    There are a variety of food found during the game. These are usually just laying around the ground and are easy to spot.

    • Apple
    • Pear
    • Melon
    • Cherry
    • Orange
    • Strawberry
    • Pie
    • Pizza
    • Chicken Leg
    • Bacon Pankcakes
    • Fries
    • Hotdog
    • Can Food
    • Pretzel
    • Ice Cream Cone
    • Slice of Pie
    • Burrito
    • Sandwhich
  • Find all of BMO's game cartridges

     

    There are only four BMO game cartridges 3/4 are found in the Nightosphere and the last one is given to you by Princess Bubblegum for completing all her quests.

    • Compara 2 - Reward from last quest for Princess Bubblegum (Might be a random cartridge given)
    • A. Master D - Nightosphere chest
    • SB Bros. - Nightosphere chest
    • Heat Sig - Nighosphere chest

    The BMO cartridges can all technically be found on the first floor of the Nightosphere.

  • Pick up every type of Item

    These item give you some advantages for a small period of time. Some items can give you an extra boost in your movement, stop time for a few seconds, give you ammo, etc. These items are usually found laying on the ground, found in treasure chest or sometimes dropped by enemies.

    • Stopwatch
    • Cyclops Tears
    • Fairy
    • Demons Heart
    • Ammo
    • Lamb Relic
    • Honey Energy Drink
    • Molasess
 

Secret achievements

  • Outrun the stampeding prisoners

    Story related and cannot be missed!

    This is the boss fight on floor 20.

  • Receive a Curse

    There are a few ways to "receive a curse".

    1. Getting hugged by one of the wolfs with heart shaped hands
    2. By opening one of the treasure chest that can be boobietrap
    3. Getting hit by Magicmans cloud attack
    4. By picking up the Cursed Sword
  • Outsmart the Demon Cat

    Story related and cannot be missed!

    This is the boss fight on floor 10.

  • Put Ice King in his place.

    Story related and cannot be missed!

    This is the boss fight on floor 30.

  • Assist Gunter with a feisty feline.

    Story related and cannot be missed!

    This is the boss fight on floor 40.

  • Rescue the Hyoomans.

    Story related and cannot be missed!

    This is the boss fight on floor 50.

    TIP: Helps to turn the music volume down to hear the Hyoomans cry.

  • Weather Goliad and Stormo's psychic assault.

    Story related and cannot be missed!

    This is the boss fight on floor 60.

  • Hitman

     

    15

    Free the Earl of Lemongrab.

    Story related and cannot be missed!

    This is the boss fight on floor 70.

  • Free Flame Princess.

    Story related and cannot be missed!

    This is the boss fight on floor 80.

  • Overcome the Guardians' punishment.

    Story related and cannot be missed!

    This is the boss fight on floor 90.

  • Fully upgrade LSP.

    LSP is unlocked after you defeat the boss on floor 10.

    Simply max out all of LSP's stats.

    See "Finn the Human" for more details.

  • Fully upgrade Ice King.

    Ice King is unlocked after you defeat the boss on floor 30.

    Simply max out all of Ice King's stats.

    See "Finn the Human" for more details.

  • Fully upgrade Lemongrab.

    Lemongrab is unlocked after you defeat the boos on floor 70.

    Simply max out all of Lemongrab's stats.

    See "Finn the Human" for more details.

  • Fully upgrade Flame Princess.

    Flame Princess is unlocked after you defeat the boss on floor 80.

    Simply max out all of Flame Princess's stats.

    See "Finn the Human" for more details.

  • Complete all of Princess Bubblegum's Quests.

    Princess Bubblegum's quests are the most straightforward. The first three you will probably complete on your first trip to the dungeon. Even though you can only get the quests in order, if you have completed the requirements for a quest before receiving it you will automatically complete it when you do get it.

    Quest: Worth Your While (3 part quest)
    Objective: Collect 10 Treasure - Collect 2 sub-weapons - Spend 50 treasures.
    Reward: 10 treasures - Cone O' 9 Flavors - 2 keys

    Quest: Stop the Prison Break
    Objective: Clear Floor 20
    Reward: Speedy Feet token

    Quest: Locate the Ice King
    Objective: Clear Floor 30
    Reward: 25 treasures

    Quest: Protect the Hyoomans!
    Objective: Clear Floor 50
    Reward: Candy Seeds token

    Quest: Psychic Disturbance
    Objective: Clear Floor 60
    Reward: 50 treasures

    Quest: Forget About the Dungeon
    Objective: Clear Nightosphere Floor 5
    Reward: Lollipops token

  • Complete all of Tree Trunks' Quests.

    Tree Trunks is unlocked after you defeat boss floor 20. And will show up in the courtyard. Crystal Apples can appear in any chest in the Ice Tunnels (floors 21 to 40). Cursed Swords can be found scattered on the floor in the Ancient Ruins (floors 41 to 60).

    Quest: Hug in Wolf's Clothing
    Objective: Defeat 5 Hug Wolves
    Reward: Booties token

    Quest: Delicious Pie
    Objective: Collect 1 Crystal Apple
    Reward: Delicious Pie

    Quest: Dangerous Dagger
    Objective: Collect 1 Cursed Sword sub-weapon
    Reward: Flame Chucks sub-weapon

    Quest: Find Mr. Pig
    Objective: Clear Floor 60
    Reward: Thumps Coupon

    Quest: Baked Goods
    Objective: Collect 1 Bread Shot sub-weapon
    Reward: Croissant Wave sub-weapon

  • Complete all of Susan Strong's Quests.

    Susan Strong is unlocked after you defeat boss floor 50. And will show up in the courtyard. The Marshmellow can be found in random chests in the Ancient Ruins (floors 41 to 60). Lub Glubs appear in the Ancient Ruins. From there you are waiting until you clear floor 90 to move on.

    Quest: Hat Trick
    Objective: Collect 1 Kitten Gun sub-weapon
    Reward: Catling Gun sub-weapon

    Quest: Nostalgia
    Objective: Collect 1 Marshmellow
    Reward: Rowdiness Coupon

    Quest: Beautification
    Objective: Defeat 10 Lub Glubs
    Reward: Metal Detector token

    Quest: Find Sweet Little Man
    Objective: Clear Floor 90
    Reward: 100 treasures

    Quest: Weapon Upgrade
    Objective: Collect 1 Bamboo Pole
    Reward: Shark Sword sub-weapon

  • Complete all of Mr. Pig's Quests.

    Mr. Pig is unlocked after you defeat boss floor 60. And will show up in the courtyard. You should have access to all the items he wants for his quests. For Sweet Silence, you can go to floor 11 and farm the birds.

    Quest: Scrambled Eggs
    Objective: Collect 1 Over Easy sub-weapon
    Reward: Egg Drop sub-weapon

    Quest: Feartastic Journey
    Objective: Clear Floor 70
    Reward: Imagination Coupon

    Quest: Typecasting
    Objective: Collect 1 Magic Wand
    Reward: Cherry Blossom Wand sub-weapon

    Quest: Sweet Silence
    Objective: Defeat 50 Birds
    Reward: Almighty Key token

    Quest: Strategy Guide
    Objective: Collect 1 Mind Games
    Reward: 200 treasures

  • Complete all of Starchy's Quests.

    Starchy is unlocked after you defeat boss floor 90. And will show up in the courtyard. The Broom for Waste Retrieval drops form a random chest in the Gum Lab. The enemy generators for Take Out the Trash have to be ones in the Nightosphere; ones in the main dungeon do not count. Defeating Death for The Impossible Dream is very difficult. Death spawns if you spend too much time on a dungeon floor and kill most of the enemies. He does three thumps of damage whenever you are in melee range. You need to use a ranged character like Ice King or Flame Princess and shoot Death from afar. This is going to take a long time and you will still need to dodge his bones.

    Quest: Waste Retrieval
    Objective: Collect 1 Broom
    Reward: Focus Coupon

    Quest: Fine Dining
    Objective: Collect 1 Crabs sub-weapon
    Reward: Scorpions sub-weapon

    Quest: Fuzzy Favor
    Objective: Collect 1 Kitten Gun sub-weapon
    Reward: Caturday Cannon sub-weapon

    Quest: Take Out the Trash
    Objective: Defeat 50 Nightosphere generators
    Reward: Amulet token

    Quest: The Impossible Dream
    Objective: Defeat 1 Death
    Reward: Infinite Heart Sweater token

  • Entered the Nightosphere

    The Nightosphere is unlocked after you defeat the boss on floor 70. The Nightosphere is located near the Choose Goose store. Simply walk into it for the achievement.

  • Uncover Bubblegum's dark secret.

    Story related and cannot be missed!

    This is the boss fight on floor 100.

  • Survive 15 Floors in one Nightosphere run.

    See "The Limit" for more details.

  • Survive 25 Floors in one Nightosphere run.

    See "The Limit" for more details.

  • Survive 50 Floors in one Nightosphere run.

    The Nightosphere is unlocked after defeating the boss at the end of floor 70. And I do recommend you leave the Nightosphere playthrough for last.

    Before attempting the Nightosphere playthrough complete Strachy's last quest. This will unlock the Heart Sweater token; turns the games difficulty to easy.

    TIPS:

    • Complete Strachy's last quest. This will unlock the Heart Sweater token; turns the games difficulty to easy.
    • Recommend to play with 2-4 players.
    • Do not attempt to fight the enemies.. Quickly make your way to the stairs instead. This will minimize the chances of you dying or loosing health. Kill enemies if you only really have to.
    • Use tokens like Speedy Feet, Zeldron's Armor, Fridjitsu Manual, Thump Token, etc. Basically any token that gives your character a boost in health, attack, speed, defense. And of course use the Heart Sweater token if you have it unlocked.
  • Collect every Token

     

    Tokens are used to give your character a slight upgrade like an extra heart, attack boost, etc. Tokens can be found by opening the green treasure chest, killing enemies or given to you for completing a quest. There are 40 tokens:

    • Speedy Feet
    • Nerdicon Glasses
    • Enchiridion
    • Nightosphere Amulet
    • Wishing Eye
    • Wish Orb
    • Hero Kerchief
    • Fridjitsu Manual
    • Questionable Potion
    • Candy Seeds
    • Thump Token
    • Zeldron's Armor
    • Brogend Medallion
    • Ninja Symbol
    • Turtle Princess Medal
    • Force Field
    • Mirror of Ororrim
    • Passive Resistance
    • Wizard Eye
    • Tiny Wings
    • Cloud Undies
    • Eraser
    • Bubble Soap
    • Booties
    • Instant Bath Serum
    • Universal Translator
    • Hugsbane
    • Hambo
    • Glue
    • Un-Freezing Potion
    • Flame Shield
    • Metal Detector
    • Royal Medal
    • Mind Games
    • Bag of Keeping
    • Lollipops
    • Almighty Key
    • Obnoxygen
    • Sack Lunch
    • Heart Sweater
  • Collect every Sub-Weapon

     

    Sub-weapons is an alternate weapon you can carry to help you defeat the enemies. Sub-weapons can be found laying on the ground, found in treasure chest, dropped my enemies or given to you for completing a quest. To use a sub-weapon press . There are 30 sub-weapons:

    • Bamboo Pole
    • Bananarang
    • Big Axe
    • Bread Shot
    • Candy Cane Gun
    • Cone 0' 9 Flavors
    • Catling Gun
    • Caturday Cannon
    • Cherry Blossom Wand
    • Crabs
    • Croissant Wave
    • Cursed Sword
    • Egg Drop
    • Fire Hose
    • Flame Chucks
    • Goblin Whip
    • Hero's Gauntlet
    • Homing Bees
    • Ice Star
    • Ice Sword
    • Jake's Sword
    • Kitten Gun
    • Magic Sword
    • Neptr Arm
    • Over Easy
    • Poot Newt
    • Sack of Butter
    • Scorpions
    • Shark Sword
    • Treasure Bag
  • Locate every Familiar

     

    Familiars can give you extra back up power, check treasure chest to see if they are traps or not, drop food to eat, etc. Familiars can only be found by opening the treasure chest during a level. They all spawn randomly as you journey through the dungeon.

    • Stanley - The watermelon
    • Shelby - Pink worm
    • Loraine - Grey chicken
    • Clown Nurse - Clown head
    • Flambo - Floating fire demon
    • Manticore - Floating Griffin (lion)
    • Poot cloud - Green cloud
    • BMO - Blue Gameboy
    • Dancing Bug - Pink bug
    • Hotdog Knight - Brown hotdog with sword and viking hat

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