TSC Editor+

TSC Editor+ v1.0 Release

Spoiler: Downloads

TSC Editor+ v1.0 (Need Python 3.9+)
Source Code (Github)

TSC Editor+ is a multi-language editor for .tsc script files used in Cave Story, Cave Story+ (Steam/Switch) and related engines/mods.
This project focuses on improving the workflow for modders, translators, and script editors with tools like syntax highlighting, encoding detection, project management, and built-in command documentation.
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Features​

• Syntax highlighting​
• Syntax validation​
• Automatic encoding detection​
• Cipher/encryption detection​
• Smart character replacement​
• Built-in TSC command documentation (See In Github)​
• Custom commands support​
• Search & Replace​
• Undo / Redo​
• Hex dump viewer​
• Auto-save​
• Edit history​
• Dark theme​
• Adjustable font size​
• Custom command colors​
• Project support (.cstsc)​
• Folder loading​
• Quick game testing with F5​
• doukutsu.exe integration​

Supported Encodings​

• Shift-JIS​
• CP932​
• UTF-8​
• Latin-1​
• CP850​

Supported Languages​

• English​
• Español​
• 日本語​

Keyboard Shortcuts​

Ctrl + O Open .tsc
Ctrl + Shift + O Open project
Ctrl + Shift + Alt + O Open folder
Ctrl + S Save project
Ctrl + Shift + S Export .tsc
Ctrl + F Search
Ctrl + R Smart replace
Ctrl + Z Undo
Ctrl + Y Redo
F5 Test game

Notes​

• Windows is currently the primary supported platform.​
• Linux/macOS support is experimental.​
• Some encrypted TSC formats may behave differently depending on the engine version or mod.​

License​

MIT License

Credits​

Inspired by the Cave Story modding community.
Developed with Python and Tkinter.
Carrot Lord's Encryptor and Decryptor (Booster's Lab) (Cave Editor) was used

Author​

EdwarlyGamer999+

Requirements
Python 3.9+

 

You can search how it works TSC in the source code of all the editors or the TSC decoder of Carrotlord, 'cause you must decode first before edit...

 

You can search how it works TSC in the source code of all the editors or the TSC decoder of Carrotlord, 'cause you must decode first before edit...

The editor now works with freeware CS+ Steam (I'm not sure if it will work since there are betas from 2026 and it probably won't be stable) and CS+ Switch. I'm translating, improving the UI, and adding tools.

A Quick Look at the Project's Small Progress...
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Nice!

Spoiler: Spoiler

It will have A Dark Mode?

 

It will have A Dark Mode?

Unfortunately, No, I have tried it and Tkinter only changes the color of the canvas (not the window) although I think it is because I do not know how to change the color of the window, at the moment it will not have the dark mode like modern editors (Sky Dragon Editor).

Spoiler

Edit: I'll Add It But The Window Won't Change Its Color

 

Interesting to see this pop up.

Are you planning to add any special features?

 

Interesting to see this pop up.

Are you planning to add any special features?

Yes, of course!

Spoiler: Features

You can import an entire folder of TSC files so you don't have to import them one by one. Special characters will be highlighted in red (you can also delete all special characters with a button). There will be TSC documentation for the freeware, Steam, and Switch versions. You can change the font in the editor. It has autosave every 6 minutes (disabled by default). The UI will switch to three languages depending on the PC: English, Japanese, and Spanish. It will have a character counter (to prevent <MSG tags from going over the text box). You can zoom with the mouse wheel. It has a word/file search function. You can extract TSC files as projects (.cstsc is the autosave extension) or as .txt files. These are more or less the additional features that will be added in the first version; more features will be added soon.

 

Special characters will be highlighted in red (you can also delete all special characters with a button).

I'm curious what prompted this because I feel lile more often than not someone will insert a 'special character' by intent rather than accidentally (AI generated TSC wasn't a thing yet last I checked) and can sooner come from things like OoB flags (dephending on the definition of special) and translations (ie. German's ß, chinese, accents etc.).

 

AI generated TSC wasn't a thing yet last I checked

The AI don't generate TSC correctly, it creates commands that doesn't exist or confuse their significate. So the modding don't depend of AI!

I'm curious what prompted this because I feel lile more often than not someone will insert a 'special character' by intent rather than accidentally (AI generated TSC wasn't a thing yet last I checked) and can sooner come from things like OoB flags (dephending on the definition of special) and translations (ie. German's ß, chinese, accents etc.).

I talk spanish, but in my mods I put accents accidentaly or I use this: "¡¿", that doesn't characters in english.

It will have a character counter (to prevent <MSG tags from going over the text box)

WOOOOOOOAH!

 

The AI don't generate TSC correctly, it creates commands that doesn't exist or confuse their significate. So the modding don't depend of AI!

I talk spanish, but in my mods I put accents accidentaly or I use this: "¡¿", that doesn't characters in english.

WOOOOOOOAH!

An Example of This Function in Action:

Normal Text:

<PRI<MSG¿Cómo Estás?<NOD<END

You Trigger the Automatic Removal of Special Characters:

<PRI<MSGComo Estas?<NOD<END

Automatic Removal Can Damage Your TSCs If You Select the Commands; Make Sure to Select Only the Text (This Action Can Be Undone with Ctrl+Z).

 

Perhaps you could make the TSC editor work with the language server for diagnostics, hints, autocomplete, etc.? Might be a fun challenge to implement an LSP client for it: https://github.com/nimblebun/tsc-language-server

 

Perhaps you could make the TSC editor work with the language server for diagnostics, hints, autocomplete, etc.? Might be a fun challenge to implement an LSP client for it: https://github.com/nimblebun/tsc-language-server

That would be a good idea, but for now it won't be added to the first version because I don't know much about the Go programming language. I only know C++ and Python. I'll keep it in mind after I release the first version of TSC Editor+

 

You can implement an LSP client in any language, it just needs to communicate with the tsc-ls binary via stdio or TCP and it's all JSON-RPC under the hood.

Maybe when I have some free time, I'll make a Python client library for it.

 

You can implement an LSP client in any language, it just needs to communicate with the tsc-ls binary via stdio or TCP and it's all JSON-RPC under the hood.

Maybe when I have some free time, I'll make a Python client library for it.

Sure, it would be quite useful as it facilitates TSC code verification. I wish you luck creating that library. One question: Can it be installed with the pip install command or by downloading it and extracting it into the Python folder?

 

I'm curious what prompted this because I feel lile more often than not someone will insert a 'special character' by intent rather than accidentally (AI generated TSC wasn't a thing yet last I checked) and can sooner come from things like OoB flags (dephending on the definition of special) and translations (ie. German's ß, chinese, accents etc.).

Currently, the only special characters detected by the editor are Spanish. In the future, I will add more that the original engine cannot support (without patches), such as ç or č. This way, people can translate the game into any language without altering the executable.

 

It has bugs that can't be fixed, like the dark theme which looks awful (Unless your operating system allows you to completely change the window color).

You'd tried to use ttk-themes?

 

TSC Editor is out, Woohoo!! If you find any bugs, please let me know.

 

You'd tried to use ttk-themes?

I didn't know, maybe in the next version I'll fix the dark theme and other things.

Spoiler

Edit: I will also use pywinstyles