This guide provides a detailed overview of all bosses in the game, including their spawn methods, locations, summoning items, and loot tables.
1. Slimeking
SlimekingThe Slimeking is the first boss players usually encounter in Tinkerlands. It appears randomly in the Grasslands biome, often preceded by the message: “You feel like something is coming from afar…”.Alternatively, it can be summoned by using a Slime Voodoo Doll, which is crafted at a Working Table using 50 Mucus. The doll also has a chance to drop from regular Slimes.Drops
Jelly Pistol
Lucky Moustache
2. Frog Prince
Frog PrinceThe Frog Prince is encountered in the Swamp biome, where it can be summoned by placing 5 Eye of Newt on its altar. Interacting with the altar while carrying the required items will automatically place them and spawn the boss.After the Frog Prince is defeated, the altar temporarily disappears but will respawn, allowing future summons.Drops
Arrow Haunches
Frog Prince Tongue
HammerFrog
Croarc
3. Mineral Spider
Mineral SpiderThe Mineral Spider resides in the center of the Caves, accessible through an entrance located in the Snow Biome. At the boss area, players will find The Carpenter, who is wrapped in silk strings. Interacting with him will trigger the boss fight.Alternatively, the boss can be summoned using a Mineral Spider Egg, which is crafted at a Working Table with 50 Mineral Silk.Drops
Spider Spear
Spider Sword
Spider Staff
Spider Ingot
4. Iron Devourer
Iron DevourerThe Iron Devourer is a late-game boss that can be summoned by placing the four biome-specific items known as Thumpers. These include:•
Thumper (Forest)• 
Thumper (Desert)• 
• 
Each Thumper must be placed on a tile corresponding to its respective biome type. Once all four are correctly placed, they will be removed from the world and the Iron Devourer will spawn at the center of the ritual area.
Drops
Spike Whip
Iron Device
5. Overgrown Crab
Overgrown CrabThe Overgrown Crab is a late-game boss that does not spawn naturally. It can only be summoned using Crab Juice, which is dropped by rare blue crabs found in the Beach biome.Drops
Crabmerang
Crabclaws
6. Grim Reaper
Grim ReaperThe Grim Reaper is a boss that can only be summoned using a Cursed Doll. This item is crafted by Skeleton, an NPC who can be found in the Pumpkin Biome within the Caves, using 20 Dolls and 20 Needles.Drops
Nightmare Crossbow
Cursed Spike
Pumpkin Lollipop
Rare Candy
Chocolate Bar
Candy Bag
Needle
7. Quetzalcoatl
Quetzalcoatl
Quetzalcoatl is a boss that can be spawned anywhere after using the Forbidden Pact. This summoning item is located on a pedestal at the center of the Jungle biome.
Drops
Quetzalcoatl Bow
Quetzalcoatl Spell
Quetzalcoatl Whip
8. Baba Yaga
Baba Yaga
Baba Yaga appears in the Swamp biome on the Main Island, but only during periods when the swamp is covered in a purple fog, indicating the start of her event.
The encounter begins with her walking house, which roams the swamp on bird-like legs. At first, the house is immune to damage. When trying to attack it, the house will point toward the nearest wolf statue, hinting at the next target. These wolf statues are scattered throughout the swamp and are wrapped in purple swamp essence.
All statues must be destroyed to make the house vulnerable. Once it is defeated, Baba Yaga herself appears, triggering the second phase of the fight.
Drops
Bababroom
Vial Bow
Grandma’s Concoction
9. Corrupted King
Corrupted King
The Corrupted King can be found in the center of the Caves, but only after defeating Baba Yaga. A red-colored Corruption biome begins to spread from the location where the first Mineral Spider boss fight took place.
To trigger the encounter, players must destroy the Corrupted Heart found at the center of this corrupted area. Doing so will initiate the Corrupted Blood Event, unleashing waves of powerful enemies as corruption spreads.
Once the waves are cleared, the Corrupted King will appear, presenting a difficult and climactic boss battle in the depths of the caves.
Drops
Blood Pistol
10. The Huntress
HuntressThe Huntress is a boss found on Goblin Island, which is a Level 4 Island. She can be summoned by destroying four purple goo factories located on the island. Once all four have been destroyed, the Huntress will appear and engage the player.
Drops
Huntress Bow
11. The Banshee
Banshee
The Banshee is a ghostly boss found in the Ghostlands. She can be summoned by interacting with the Ritual Altar located at the center of the map, while carrying 3 Red Candles in your inventory.
Red Candles can be found in chests across the island. Players will also come across several statues that point toward a nearby Mausoleum, a unique underground area filled with the island’s enemies. Inside, players should look for a statue of a woman in a distinct chamber, holding a Red Candle used for summoning the Banshee.
Phantom Bow
Phantom Spell
Bottled Ghost
12. Tut & Cmon
Tut & Cmon
Tut & Cmon are a duo boss fight found inside the Desert Dungeon, located in the Desert Biome on the Main Island. Accessing the dungeon requires a Desert Key, which is dropped by the Banshee.
They can be summoned by interacting with the Pharaohs’ Coffins inside the dungeon.
Horus Bow
Sejem Scepter
Ankh
13. Trichroma Fairy
Trichroma Fairy
The Trichroma Fairy is a powerful boss found in the Trichroma Forest, located on the Level 6 Island. To summon this boss, players must craft a Fae Gem using 3 Tricolor Crystals, 1 Fire Gem, 1 Frost Gem, and 1 Sparkling Gem at the Trichromatic Roots crafting station.
Trichromatic Roots can be found scattered throughout the Trichroma Biome, particularly near the Gardens.
The required colored gems are dropped by the corresponding Trichroma Ghosts, which are scattered across the world:
• The red Trichroma Ghost drops the Fire Gem
• The blue Trichroma Ghost drops the Frost Gem
• The yellow Trichroma Ghost drops the Sparkling Gem
Drops
Rainbow Staff
Rainbow Bow
14. Deep Sea King
Deep Sea King
The Deep Sea King is found in the Coraline Fields biome, specifically in the center of the map. However, the center is surrounded by an impenetrable wall, and the only way inside is through a hidden cave system.
To access this cave, players must locate one of several Turtle Statues scattered around the Coraline Fields and place 4 elemental items on the matching pedestals nearby. These elemental items are dropped by various enemies in the biome. Once all four elements are placed, the entrance to the cave will open.
Inside the cave, players must make their way to the center, where a ladder leads back to the surface, placing them within the walled section of the Coraline Fields.
To summon the Deep Sea King, players must ignite 4 braziers located around the arena. Each brazier is lit by defeating a specific number of associated mobs. Once all four are burning, return to the altar to begin the fight.
Ocean Staff
Merman Trident