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Prismatic Slime in Stardew Valley: All You Need to Know

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Are you looking to learn more about Prismatic Slime in Stardew Valley? Do you want to know what exactly they are and how to slay them? Look no further than our ultimate guide, which covers everything you need to know about this unique monster.

What is a Prismatic Slime?

Prismatic Slimes are a special type of Slime that can be encountered after accepting the Prismatic Jelly quest. What makes them stand out is their color – they continuously change colors, unlike most Slimes which are always the same shade of green, blue, red, and purple.

A Brief Introduction to Slimes

Slimes are monsters that are usually found in the Mines and Secret Woods. Each Slime is slightly different in color and may or may not have an antenna on their head.

When killed, all slimes drop a Slime item, with each color having its own unique drops. It’s not uncommon to find large Slimes in the wild, which break into smaller slimes when their health is brought down to 0. Wild Slimes can even make babies, which is a core mechanic of Slime breeding.

All types of slimes, except big slimes and slimes raised in a Slime Hutch, count towards the Monster Eradication Goal, which requires killing 1000 Slimes. Doing so will grant you a Slime Charmer Ring, which makes you immune to damage and slowdown effects from any Slime, making it a must-have for Slime ranchers.

Prismatic Jelly Quest

The Prismatic Jelly Quest is given by the Wizard, who lives in the Wizard Tower. Your task is to slay a Prismatic Slime and bring back a jar of its Prismatic Jelly. Note that Prismatic Jelly will only drop from killing a Prismatic Slime. In addition, if you keep the Jelly, it will vanish from your inventory if the quest expires, so make sure you return it in time.

Also, the Wizard Tower closes at 11:00 pm. Therefore, if you haven’t found a Prismatic Jelly by that time on your last day, the quest is over.

Prismatic Jelly Quest's note
Prismatic Jelly Quest’s note / Image: Pigtou.com

How to Slay a Prismatic Slime

To complete the Prismatic Jelly Quest you will have to slay a Prismatic Slime. They can be killed by hitting them with a weapon, like other monsters. However, they have very high HP (1000) and damage (35), making them considerably stronger than regular Slimes. It is thus recommended to use a stronger weapon if possible.


By completing the Prismatic Jelly Quest, you will be rewarded with 5000g and the Monster Musk recipe. The Monster Musk is a buff that spawns more monsters, potentially increasing your loot drops and helping you knock out monster slayer goals quickly.

Rewards of Prismatic Jelly Quest
Rewards of Prismatic Jelly Quest / Image: Pigtou.com

Locations and Spawn Rates

The Mines, Quarry Mine, and Skull Cavern all have the potential of spawning a Prismatic Slime. As the special order is active, the chance of a Prismatic Slime spawning and replacing an ordinary slime is around 1.2%, and luck has a significant effect on this. With the highest luck, there is a 11/500 chance of a Prismatic Slime replacing an ordinary Slime. In order to increase the chances of finding one, the key is to encounter as many Slimes as possible.

The Mines

To access The Mines, go up and to the right of Robin’s house and go through the door in the mountain. The Mines become accessible after three days in-game.

The Mines in Stardew Valley
The Mines / Image: Pigtou.com

When searching for a Prismatic Slime in The Mines, the best strategy is to hop between floors 5, 15, and 25. It is not recommended to waste time breaking rocks to find a way down to lower levels. If the Slime is not on Floor 5, take the elevator to Floor 15, and if not there, take the elevator to Floor 25 and repeat as necessary. These floors are the best because the monsters on the deeper levels can become quite powerful.

Another strategy for The Mines is to use the Level 5 reset method. This method entails going to Floor 5, and if no Slime is found, take the elevator up and come back. This increases chances of finding a Slime, as the level essentially resets when leaving and reentering. Floor 5 should be used as it can spawn up to 8-9 Slimes at a time.

The Quarry Mines

The Quarry Mines, located on the left edge of the Quarry, can be accessed by repairing the Quarry Bridge, by completing the Bridge Repair community center’s bundle. This location can sometimes be forgotten about, but is definitely worth exploring for the Prismatic Slime.

The Skull Cavern

The Skull Cavern located in the northwest area of the Desert is the riskiest and dangerous place to search for a Prismatic Slime. The Skull Cavern is initially locked and requires the Skull Key, which can be found on Floor 120 of The Mines.

Tips to Increase Your Luck

When searching for a Prismatic Slime the luck factor is fundamental one! it’s a 1/83 chance of a slime being prismatic while the quest is active, and it is affected by luck.

You can check you daily luck by right-clicking on the Television and selecting Fortune Teller; luck can have a value between -0.1 to 0.1.

To increase your daily luck by 0.025 you can use the Special Charm, that can be found after solving the puzzle depicted in Secret Note #20.

You can also try using the luck buffs gained from eating specific food, like:

  • Banana Pudding
  • Fried Eel
  • Ginger Ale
  • Luck Lunch
  • Pumpkin Soup
  • Shrimp Cocktail
  • Spicy Eel
  • Magic Rock Candy
Prismatic Slime - tips to increase your luck
Prismatic Slime – tips to increase your luck / Image: Pigtou.com

Stardew Predictor Mod

If you are willing to cheat a teeny bit, you can use the Stardew Predictor mod and to find out which floors will be infested with slimes and check the mines tab to see which floors are slime infested on which days, so you can aim to hit the infested floor repeatedly for lots of slime spawns.

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Pigtou Editorial Team

A group of tech enthusiasts who find pleasure in troubleshooting and resolving various issues. When we're not engaged in writing, we typically enjoy playing table football or spending time with our office dog.
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