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Have you updated your copy of Curse of the Sea Rats? Share your experience with the latest patch in the comments below. And remember: always sail the digital seas responsibly—respect the developers who poured their hearts into this beautiful rat adventure.

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Disclaimer: This article is for educational and informational purposes. We do not host or link to any ROM, NSP, or pirate files.

Curse of the Sea Rats on Nintendo Switch: The Ultimate Guide to the "Ratoidvania" Experience

Curse of the Sea Rats is an action-adventure platformer developed by Petoons Studio that has gained attention for its striking hand-drawn animations and unique "Ratoidvania" gameplay. Set on the Irish coast in 1777, the game follows four prisoners of the British Empire who are transformed into rats by the pirate witch Flora Burn. Core Gameplay and Features

The game blends classic 2.5D exploration with a focus on character variety and cooperative play. curse+of+the+sea+rats+rom+nsp+update+switch

Four Playable Characters: Players can choose between David Douglas, Buffalo Calf, Bussa, and Akane Yamakawa, each offering distinct weapons and magical abilities.

Local Co-op: Unlike many titles in the genre, Curse of the Sea Rats supports up to four-player local multiplayer, allowing friends to explore and fight together.

Skill Trees: Characters can be customized through individual progression trees that boost stats like health, damage, and critical hits.

Art Style: The game features lavish, hand-drawn 2D character models inspired by the golden era of Disney and Don Bluth, set against detailed 3D environments. Vital Update Information (Switch)

Since its initial release on April 6, 2023, the game has received several patches to address technical issues and improve gameplay fluidness. Version 1.3.7 Improvements Have you updated your copy of Curse of the Sea Rats

Released in June 2023, this major update significantly refined the combat experience: Curse of the Sea Rats - REVIEW [Nintendo Switch]

Note: This review assumes you are looking for a performance and content assessment of the updated version, not a guide on obtaining ROMs.


After playing through the fully patched v1.0.3 on a standard Switch (not OLED), here is the verdict:

Verdict: The updated NSP (patched to v1.0.2 or higher) essentially transforms the game from a “buy on sale” recommendation to a full-price metroidvania gem. If you are searching for the update to fix your legitimate copy, you will be satisfied. If you are seeking a pirated ROM, know that you are missing out on ongoing support and risking your console.

The developers have been active in patching the game since its initial launch. If you are downloading an NSP or XCI file, you want to ensure it includes the latest patches (often denoted as Update v1.0.4 or higher). After playing through the fully patched v1

The most recent updates typically address:

Downloading the update NSP ensures you are playing the version the developers intended, rather than the buggy launch day build.


  • Installation and Use
  • Updates and Patching
  • Integrity and Verification
  • Preservation
  • This blog post is for educational and archival purposes only. Curse of the Sea Rats is a premium title created by a small team of dedicated artists and developers. Piracy hurts indie developers.

    If you enjoy the game, we strongly encourage you to support the developers by purchasing the game legitimately on the Nintendo eShop. This ensures they can continue to create beautiful hand-drawn games and provide future updates.


    Handling Switch game images (ROM/XCI/NSP) involves technical specifics and substantial legal and security risks. For Curse of the Sea Rats and similar titles, the recommended path is official purchase and platform-compliant updates; lawful archival of owned copies can follow best practices described above.