bcsfe
A save file editor for The Battle Cats
Decision gist · record as of 2026-08-14
Yes, if you own The Battle Cats and want to edit your own save file. Low install friction, active maintenance, no known vulnerabilities, and a clear copyleft license. The GPL-3.0-or-later requirement is straightforward for personal use; only matters if you build a commercial service on top of it.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later.
- On Linux, may require system package tk or python-tk for graphical file dialogs; manual path entry works without it.
- Low install friction with a pure Python wheel and four common runtime dependencies.
License · maintenance · safety
GPL-3.0-or-later (copyleft) — GPL-3.0-or-later copyleft license requires that any derivative works or services built on top of this editor must also be open source and GPL-compatible.
last release 2026-07-24 (21 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 92,535 downloads/mo, #13,446 on PyPI
Alternatives
Verify before relying
pip install bcsfe
bcsfe- Whether the editor handles all current Battle Cats save formats and game versions
- Performance characteristics when working with large or corrupted save files
- Whether pyjwt is used for save authentication or encryption operations
What it is and what it does
BCSFE is a command-line tool that lets you read and modify saved game data for The Battle Cats. It works by extracting save files from the game, decoding and patching the internal data structures (currency, units, progression), and re-encoding them back into a format the game recognizes. The tool uses pyjwt, requests, pyyaml, and argparse to handle cryptographic operations, configuration, and command-line interaction.
You run it as a standalone CLI application or Python module on Windows, macOS, Linux, or Android (via Termux). It supports both graphical file selection (where tk is available) and manual path entry. The editor is designed for end users who want to modify their own game saves; the license explicitly requires that any paid service using this tool must disclose its free availability to customers before payment.
Use it for
- Restore or modify your own Battle Cats save file after losing progress or switching devices
- Edit in-game currency, unit levels, or other progression metrics for personal testing or experimentation
- Transfer save data between devices or game accounts by editing the save file directly
- Develop derivative tools or bots that modify Battle Cats saves, provided they remain open source
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you own The Battle Cats and want to edit your own save file.
Low install friction, active maintenance, no known vulnerabilities, and a clear copyleft license. The GPL-3.0-or-later requirement is straightforward for personal use; only matters if you build a commercial service on top of it.
Install
bcsfe on PyPI
Before you install
Low install friction with a pure Python wheel and four common runtime dependencies. Actively maintained with a recent release.
Requires Python 3.9 or later. On Linux, may require system package tk or python-tk for graphical file dialogs; manual path entry works without it.
License in practice
GPL-3.0-or-later copyleft license requires that any derivative works or services built on top of this editor must also be open source and GPL-compatible.
Quickstart
pip install bcsfe
bcsfeVerify before relying
- Whether the editor handles all current Battle Cats save formats and game versions
- Performance characteristics when working with large or corrupted save files
- Whether pyjwt is used for save authentication or encryption operations
Package facts
| License | GPL-3.0-or-later copyleft |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 4 packagespyjwtrequestspyyamlargparse |
| Maintenance | Actively maintained 21 days since the last release |
| First released | |
| Downloads | 92,535 / month, #13,446 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: End Users/DesktopOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3.9Topic :: Utilities |
Evidence: bcsfe-3.6.0-py3-none-any.whl
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