Fisch Astraeus update patch notes 

Fisch is a fishing simulator set in an open world where you cast a line into the sea to catch fish of different species. On December 27, 2025, the Roblox title released a minor update, introducing a new rod that can be obtained at a secret location in-game. Moreover, you can unlock several fresh skins and purchase some limited-time items from the Black Market.

This article will introduce all the additions in this small update.

Patch notes for the Astraeus update in Fisch

The Cursed Isle (Image via Roblox)

Fisch's minor update on December 25, 2025, released a new rod called the Astraeus Serenade along with several skins and Black Market Items. Here are the patch notes released by the developers:

Astraeus

• Somewhere north...
• Somewhere cursed...
• And a tune under the stars...

Also read - The Forge Iceite guide: How to mine, recipes, and more

Limited Black Market items

New items are available at the Black Market. Located at the Underground Music Venue

• Regeneration Coil
• Snowy Gravity Coil
• Hot Chocolate

Fabulous Rod Mastery

• New Fabulous Rod challenges
• Unlock a stronger variant
• A quest rework may be on the way?...

Christmas OG Skins

Skins have released for Original owners of the following rods:

• Astralhook Rod
• Polaris Serenade
• Fabulous Rod
• Wingripper
• Tryhard Rod

You'll receive them automatically for logging in until January 25th.

New code

Redeem the "Astraeus" code by scrolling down the menu section to get:

• 10x Fruitcake Flakes
• 10x Cookie Crumble
• 5x Frostnova Bait

What is Astraeus in Fisch?

Astraeus or Astraeus Serenade is the new rod that you can get by completing a questline at the Cursed Isle. The first item required to complete this quest is the Dusky Thread, which can be obtained by finishing the Astrea Serenade Quest 1.

To claim the Dusky Thread, you must clear Merlin's Quest and claim three different mutated crystals. The developers have also released a 1-on-1 reward for the player who finds this rod for the first time.

Also read - The Forge Archangel guide

FAQs on Astrea update in Fisch

What is the Astraeus Serenade in Fisch?

Astraeus Serenade is a newly added fishing rod introduced in the December 27, 2025, minor update. It is a secret rod that can only be unlocked by completing a hidden questline tied to the Cursed Isle.

Where can I find the Astraeus Serenade rod?

The Astraeus Serenade is located at a secret spot on the Cursed Isle, somewhere in the northern part of the map. You must progress through the Astraeus questline to access it.

What is the Dusky Thread used for?

The Dusky Thread is the key item needed to progress in the Astraeus Serenade Quest 1. Without it, you won’t be able to advance further or unlock the Astraeus Serenade rod.

Edited by Sijo Samuel Paul