Wanted: a designer. The look of this website and of the launcher was made with AI as a placeholder. Anyone who knows how is free, and encouraged, to replace it (site/, launcher/ui/).

Open Catbox

Open Catbox Project

Uminekono Naku Koro niSaku

The Symphony of Catbox and Dreams, played natively on PC.

Download Other systems and versions Source code

For Windows, macOS and Linux. Free and open source.

  • No game data is included.
  • You need to own the game on Switch to play it.

Like the original

100 %

Measured against the original game, screen by screen. Every command, effect and transition the game uses is there.

No emulator

A native PC program, built on the open-source shin engine and taken further here.

Faithful

Timings, effects and menus come from the original game's code and are checked side by side with it.

Made for PC

Settings

Window mode and size, V-Sync, frame-rate cap and supersampling.

Controls

Keyboard, mouse and controller, all rebindable, with Xbox, PlayStation and Switch button prompts.

Any refresh rate

120, 144 and 240 Hz screens run at the right speed.

Galleries

Save pictures, music, movies and character sprites from the galleries.

The launcher

Sets the game up from your dump, downloads the translations and updates itself.

The soundtrack

The launcher plays the game's music from your own files, with playlists, shuffle and repeat.

Getting started

  1. Download the launcher for your system and open it.
  2. Pick your game dump and your prod.keys.
  3. Pick a language.
  4. Press Play.

You need

  • Windows 10 or 11, Linux, or macOS 11 or later
  • The base game NSP, dumped from your Switch
  • Your console's prod.keys
  • For Japanese, also the 1.0.3 update NSP

Languages

English

Catbox English by &Olga and contributors.

English (Catbox X)

By Foxdear, up to Episode 7.

Japanese

The original text, with the 1.0.3 update.

The translations are downloaded from their authors and are not part of this project.