Send queries to game servers through RCON with this command-line client.
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24 alternativessteam-lancache-prefill
Prefill a LAN cache with Steam game data using this command-line tool.
About steam-lancache-prefill
steam-lancache-prefill is a command-line tool that fills a Lancache with game data from Steam. Once a game's data is cached, later downloads of the same content are served from the Lancache, which the README says improves download speeds and reduces load on the internet connection. The tool first asks the user to select which owned apps to prefill, then downloads those apps.
Re-running the prefill command downloads only apps with a newer version than the one last prefilled. The tool can be run on the Lancache server itself or on a gaming machine. The README notes that the initial prefill of an empty cache runs at about the internet line speed, and that the setup guide was written with Linux in mind, so Windows users must substitute the command name.
Key features
- Interactive menu for choosing which owned Steam apps to prefill
- Login with Steam Guard and Steam Guard Mobile Authenticator supported
- Portable, self-contained application that requires no installation
- Runs on Windows, Linux, macOS, Arm64, Docker, and Unraid
- Game downloads write no data to disk, so no free space is needed for them
- Built-in benchmark feature for diagnosing performance bottlenecks
Best for: Operators of a Lancache server who want to preload Steam games they own onto a local network.
Good for
- Skips apps that are already up to date and re-downloads only newer versions
- Game downloads do not write data to disk
- Can run on the Lancache server itself or on a gaming machine
Watch out for
- Only apps owned on the logged-in Steam account can be selected for prefilling
- The first prefill of an empty cache runs at about the internet line speed
- The setup guide was written with Linux in mind, and Windows users must substitute the command
steam-lancache-prefill at a glance
- Category
- Gaming › Steam Communities & Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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steam-lancache-prefill FAQ
Do I need to redo the app selection before every prefill?
No. Selections are saved permanently and can be changed at any time by rerunning the select-apps command.
How does the tool handle game updates?
It tracks which version of each app was last prefilled. Re-running the prefill command downloads an app only if a newer version is available.
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