IDLE SMARTER. NOT HARDER.
Idle hours, manage achievements, and organize your Steam library from one window.
Download · Quick start · Features · FAQ
Nova is a Steam idle and achievement tool for C# / .NET 8. Idle hours, manage achievements, and organize your Steam library from one window.
| Platform | Windows 10 / 11 |
| Runtime | .NET 8 |
| Login | Steam Guard supported |
| Storage | Local, SQLite |
| Price | Free, MIT |
v1.9.2 is live. The build in the download folder mirrors the source in this repository.
Workspace — games, idler, achievements, settings.
| Idle up to 32 games at once with realistic session windows. | Unlock, lock, and schedule achievements per game with a preview. | Farm remaining card drops, then rotate to the next game automatically. |
| Sort, tag, hide, and export your library as CSV or JSON. | Snapshot screenshots, configs, and saves to a folder of your choice. | Credentials stay in the Windows credential store. Nothing is uploaded. |
- Install the .NET 8 desktop runtime.
- Download and unpack Nova.
- Sign in with Steam Guard.
- Select games and start the idler.
- Set a session limit and let it run.
nova/
├── bin\
├── config\
├── profiles\
└── logs\
Uninstall by deleting the folder. Nothing is written outside it and the per-user config directory.
# run
Nova.exe
# cli mode
Nova.exe --idle 730,440 --limit 4h
Nova.exe --export library.csv
- Steam Guard is supported.
- Idle up to 32 games at once.
- Library export supports CSV and JSON.
Is idling against the rules?
Steam allows idling; card farming policies change. Read the current Steam terms before using automation.
Does it need my password?
Sign-in uses the official Steam login flow with Steam Guard. Tokens are stored in the Windows credential store.
Can I run it on a server?
It is a desktop app, but the CLI mode works on Windows Server with the desktop runtime installed.
Where is the database?
%APPDATA%/Nova/nova.db.
| Latest release | v1.9.2 — 3 days ago |
| Last commit | core: stability fixes and dependency bump |
| Open issues | 6 |
| Contributors | 9 |
| Update cadence | weekly |
Changelog — v1.9.2
- Stability fixes across the main workflow
- Reduced startup time
- Updated dependencies
- Documentation cleanup
- Multi-game idler
- Achievement manager
- Card farming
- Library export
- Trading card market helper
- Linux build
src/ core implementation
docs/ usage, FAQ, publishing notes
assets/ original artwork
CHANGELOG.md release history
DISCLAIMER.md responsible-use notice
MIT. See LICENSE.
Unofficial project. Nova is not affiliated with any platform or publisher it interoperates with. Use it only on systems you own, and only where such modifications are permitted.