Eureka in Infinity Nikki
Screenshot by Destructoid

All Eureka and how to get them in Infinity Nikki

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Eureka are a type of accessory in Infinity Nikki that can be used to give any outfit a bꦇoost in terms of the points it scores during Styling Challenges. Not only are they pretty, but🌠 they can be upgraded and thei colors changed (in a limited way) to suit almost any outfit choice. 

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Eureka can be worn as part of your usual outfit, or simply equipped during a Styling Challenge to get that much needed boost, especially with more challenging battles over fashion choices. There are 15 s📖ets of Eureka in total, each coming with a Head, Arm, and Feet Eureka to equip as⛦ you see fit. 

How to get Eureka in Infinity Nikki

Note: As Infinity Nikki is very early into general release, and time-gating makes progression difficult, it’s difficult to find all of the Eureka styles at this time. As such, this guide will be updated on an ongoing basis as more Eureka styles are discovered.

Eureka can be discovered i💦n a variety of 🌄different ways:

  • Realm of Eureka Challenges
  • Increasing your Mira Level
  • Progression through main story quests

Realm of Eureka Challenges

Eureka gained through Realm of Eureka Challenges in Infinite Nikki
Screenshot by Destructoid

The easiest way to hoard Eureka is by running Realm of Eureka Challenges as many times as you can, as you’re guaranteed to be rewarded with some Eureka for your efforts. You’ll also need to stock up on mu♔ltiples of each Eureka if you want to upgrade them, making the boost they give during Styling Challenges more impressive. 

Different Realm of Eureka ꦆChallenges will become available to take on as you progress through the main story:

Realm of Eureka ChallengeUnlock requirements
Well of Fortune TrialComplete all quests in Chapter 1
Dream Warehouse TrialComplete all quests in Chapter 2

All Realm of Eureka Challenges will require you to collect Eureka Shards within a certain amount of time. Once you’ve collected the necessary Shards, you’ll be able to gain valuable rewards, including Eureka themselves. The Eure🐟ka given is pr💝etty random, so keep running these Challenges to unlock new styles. 

Increasing your Mira Level

Eureka gained from leveling up the Mira Level in Infinite Nikki
Screenshot by Destructoid

Increasing your Mira Level will grant you Eureka as a reward. T🐽wo specific sets can be earned this way:

Mira LevelEureka reward
3Heart Kiss: Head
12Heart Kiss: Hands
17Heart Kiss: Feet
21 (duplicate at 37)Wind’s Rhythm: Head
27 (duplicate at 44)Wind’s Rhythm: Hands
32 (duplicate at 48)Wind’s Rhythm: Feet

Progressing through the main story

Quests in Infinite Nikki
Screenshot by Destructoid

Progressing through the main story quests will reward certain sets of Eureka, such as the Rayplume set. The first of tꦇhese Eureka, for the head and the feet, will be rewarded for completing the main story quest “Unexpected Coma Incidents”. 

All Eureka sets in Infinity Nikki

In total, there are 15 confirmed unique sets of Eureka that have three different individual Eureka included. This makes a total of 45 different Eureka to unlock as you progress through a playthroꦛugh. Some of these may be locked behind late-game main story quests, so this guide will be updated accordingly.

Here are all of the sets that I’ve personally discovered, or have witnessed with my own eyes, so 🌠far:

  • Masked Magic
  • Rayplume
  • Heart Kiss
  • Melted Snow
  • Sweet Candy
  • Meteorite
  • Starlight
  • Silvermoon
  • Wind’s Rhythm
  • Rosefall
  • First Snow

How to upgrade Eureka in Infinite Nikki

Eureka upgrade screen in Infinite Nikki
Screenshot by Destructoid

To upgrade Eureka, open up your Pear-💞Pal and select the “Eureka” icon. This will open up a menu displaying all of your currently owned Eureka. All of them start at level 0, and can be upgraded all the way to level 10. To upgrade a Eureka, select the one you want to boost and then select “Upgrade” in the bottom left corner of the screen. 

Upgrading Eureka can be done in one of two ways. Either you can use Shining Particles, which are a random drop from completing🔯 quests, opening treasure chests, or completing Realm of Eureka Challenges, or you can sacrifice duplicate Eureka to upgrade another. This i🔥s why it’s worth repeated runs in the Realm of Eureka, because those duplicates will always be handy to have around. 

How to change color of a Eureka in Infinite Nikki

Screenshots by Destructoid

Some Eureka, though not all of them, can be set to specific colors depending on the style you want to achieve. Changing the color of a Eureka can be done once you’ve fully upgraded a single Eureka all the way to level 10. Qualꦐifying Eureka has various differeꦛnt colorway options, with some (such as the Rayplume set) having a rainbow, color-changing option as well. 

Of course, reaching this point will ꦐrequire a lot of sacrifice or Shining Particles, but it’s worth it to get the option to ma♏ke any Eureka fit your current style. 


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Paula Vaynshteyn
With her first experience of gaming being on an Atari ST, Paula has been gaming for her entire life. She’s 7,000 hours deep into Final Fantasy XIV, spends more time on cozy games than she would care to admit, and is also your friendly resident Whovian. Juggling online adventuring with family life has its struggles, but she wouldn’t have it any other way.