As Heartopia embraces the chilly weather in the early months of the year, there are a few things you need to be aware of to make the most of the season. One thing to be on the lookout for is Frstspore Infection, which you’ll know about from the introductory quests leading up to the event’s start.
However, there is some confusion about how to catch (or prevent) Frostspore Infection from taking hold of your avatar in Heartopia. We’ll break down everything you need to know aabout this mysterious illness and how you can unlock blue skin for your adorable avatar!
Updated February 17, 2026 by Zoë J. Osik: We’ve updated our guide to include the last additions to the Frostspore collectibles, for the Birdwatching and the Butterfly events. Hurry to grab them before they’re gone!
What Is Frostspore Infection?
Frostspore Infection is an illness you’ll learn about from Annie and the others around town. It only occurs during the winter season, and it can add some unique effects to the fauna around the island.
Heartopia: Complete Guide To The Fishing Hobby
Sea how many fish you can catch!
Additionally, it’s known to turn your skin blue! What this means for you is that you can unlock a new skin color variant by catching a cold, but how do you do that?
Updated February 9, 2026, by Zoë J. Osik: We’ve updated our guide to include the locations for the new Frostspore Insects and Winter Birds, so you can fill out your collections!
How To Unlock Blue Skin
It doesn’t matter how long you stand in the cold. What matters is that you consistently trigger the Frostspore Infection buff during the Frostwave Event Season. This means you’ll need to get the snowflake icon buff six times by touching the snowman on top of the igloo.
After turning into a snowman six times and triggering the Frostspore Infection buff, you’ll unlock the Ice Crystal Skin, which goes perfectly with all the themed items from the Acorn Store available this season.
The interaction has a 10-minute cooldown.
The best places to trigger Frostspore Infection are listed below:
- Around the Fishing Village. Over by the eastern entrance, across the Giantwood River bridge.
- Around Onsen Mountain. Under the bridge to the ruins is a good start!
- In the Center of Town. Specifically, on the road between Residential Street and Art Street.
All Frostspore Fish
Through the event, there are five Frostspore Fish you can catch in the Old Sea by the event area. You can find them below:
|
Name |
Location |
Time of Day |
Weather Conditions |
Level Required |
|---|---|---|---|---|
|
Frostspore King Crab |
Old Sea |
All Day |
Sunny, Rainy, Rainbow |
Level 1 |
|
Frostspore Ocean Sunfish |
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|
Frostspore Puffer Fish |
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|
Frostspore Seahorse |
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|
Frostspore Whale Shark |
Old Sea (Winter Fishing Event Bonus Phase) |
Speak with Vanya on Onsen Mountain to start the seasonal fishing event so you can catch the elusive Whale Sharks!
All Frostspore Bugs
There are also crystallized butterflies you can find in the forest:
|
Name |
Location |
Time of Day |
Weather Conditions |
Level Required |
|---|---|---|---|---|
|
Frostspore Mother-of-Pearl |
Forest (Jump Puzzle) |
All Day |
Sunny, Rainy, Rainbow |
Level 1 |
|
Frostspore Purple Spotted Swallowtail |
Forest (Spirit-Oak Pine Forest) |
|||
|
Frostspore Queen Alexandra’s Birdwing |
Forest (Deer Tower) |
|||
|
Frostspore Sulkowsky’s Morpho |
Forest (Deer Tower) |
|||
|
Frostspore Postman Butterfly |
Forest (Frostspore Butterfly Event Bonus Phase) |
The fifth Frostspore Butterfly will be available later in the event.
All Winter Birds
There are additional birds you can find as well, all bundled up to survive the cold:
|
Name |
Location |
Time of Day |
Weather Conditions |
Level Required |
|---|---|---|---|---|
|
Winter Greater Flamingo |
Suburban Lakeshore |
All Day |
Sunny, Rainy, Rainbow |
Level 1 |
|
Winter Eurasian Wigeon |
Suburban Lake |
|||
|
Winter Mallard |
Suburban Lake |
|||
|
Winter Smew |
Suburban Lake |
|||
|
Winter Mandarin Duck |
Suburban Lake (Winter Birdwatching Event Bonus Phase |
The fifth Winter Bird will be available later in the event.
Heartopia: Complete Guide To Ice Skating
Put your gloves and hat on, it is winter time in Heartopia!
