Install Vellum Runtime

Play VellumAC-protected games on Linux and SteamOS

Note: Games built with VellumAC can install the runtime for you when you grant permission. These manual steps are only for the rare case the automatic install fails or you hit issues.

Quick Install

Copy and paste this command into your terminal:

curl -fsSL https://projectvellum-production.up.railway.app/api/install/runtime.sh | CHANNEL=stable bash

The installer will:

  • Download the VellumAC daemon for your system
  • Verify integrity and authenticity
  • Install to a safe system location
  • Configure automatic startup (optional)

Requirements

  • Linux kernel 5.10+
  • glibc 2.31+
  • ~50 MB disk space

Supported Platforms

  • Desktop Linux (Ubuntu, Fedora, etc.)
  • SteamOS 3.x
  • Steam Deck

Troubleshooting

Installation failed

Ensure you have write permissions to /usr/local/bin or ~/.local/bin. You may need to run with sudo.

Permission denied

The installer needs permissions to modify system files. This is safe and normal. Run: sudo -E bash -c 'curl ... | sh'

Games not recognizing VellumAC

Restart your games after installation. You can verify with:vellumac status

Privacy

VellumAC only collects minimal telemetry necessary to detect cheating. No personal data is transmitted. See our privacy policy for details.