Privacy Policy — Nexus Accounting

Last updated: 2026-06-22

Nexus Accounting is a browser extension that reads your Nexus Legacy game data and displays it locally as a personal accounting dashboard. This policy describes exactly what data the extension accesses, how it is used, and where it goes.

1. Data collected

The extension reads the following data from the Nexus Legacy game API (s0.nexuslegacy.space) on your behalf:

Category Examples
Mission reports Survey, pirate raid, mining, expedition, wormhole run, and debris collection results
Fleet data Your stationed ships; your own fleet compositions sent on missions
Combat intelligence Enemy fleet and defense data from spy and camp-scout reports you ran in game
Research Your tech tree progress, active research, per-planet lab levels and speed
Planets & buildings Your planets, their buildings (to read lab levels), and stationed fleets
Galaxy map System names, security zones, arm/sector coordinates (for zone tagging and the planet finder)
Fuel logs Hydrogen cost per launched mission (type, zone, amount)

The extension also reads your nexus_token session cookie from nexuslegacy.space to authenticate those API requests. No other cookies are read, and no cookies are written or modified.

2. How the data is used

All data is used solely to operate the extension’s dashboard on your own device:

  • Build aggregated statistics (resources collected, ships lost, fuel spent, etc.)
  • Render charts, history tables, and the tech-tree planner
  • Run the offline combat simulator
  • Drive the planet-finder galaxy scan

No data is used for advertising, profiling, or any purpose unrelated to displaying your own game statistics back to you.

3. Where the data is stored

All data is stored locally on your device only, in the browser’s storage.local area (isolated to this extension). Nothing is uploaded to any server operated by the extension author.

The extension also writes automatic backup files to your Downloads/NexusAccounting/ folder before destructive operations (reset, import, schema migrations) and as a weekly auto-backup. These files are plain JSON and remain on your device under your control.

4. Data sharing and third parties

No data is shared with any third party. All network communication is exclusively between your browser and nexuslegacy.space (the game’s own servers). The extension does not contact any analytics service, telemetry endpoint, or server operated by the extension author.

5. Write operations

The extension makes one type of write call to the game API: posting a research job when you click Launch in the tech-tree planner (POST /api/research/{id}/start). A confirmation dialog is shown before this action is taken. All other API calls are read-only.

6. Data retention and deletion

Data accumulates in local storage as long as the extension is installed. You can:

  • Export a full JSON backup at any time from the dashboard.
  • Reset all stored data from the dashboard (a backup is created first).
  • Uninstall the extension — the browser removes all storage.local data on uninstall.

Backup files in your Downloads folder are not deleted automatically; you can delete them manually at any time.

7. Security

All communication with the game API uses HTTPS. Your session token is read from the browser’s cookie store and transmitted only to nexuslegacy.space. The extension does not expose your token to any other origin.

8. Contact

If you have questions about this policy, open an issue at github.com/Verroq/NexusAccounting.