SCOS
SCOS Standard is a Windows-based Steam console environment for living-room gaming. It turns a fresh Windows installation into a controller-first experience built around Steam Big Picture / Steam Gamepad UI, with normal desktop access restricted in the public Standard edition.
SCOS is built using SCOS Builder. You provide your own official Windows ISO, SCOS Builder downloads the official SCOS Build Package, creates a SCOS installation ISO, and SCOS installs as a separate console-style environment.
SCOS is independent and not affiliated with Microsoft, Valve, Steam, or any third-party launcher.
⚠️ Public Beta Warning
SCOS Standard is currently a public beta. It is intended for testers, developers, and advanced users. Expect bugs, incomplete features, and frequent updates. Please back up your data before installation and report issues through the SCOS GitHub repositories.
Overview
SCOS transforms a compatible Windows installation into a console-like Steam gaming environment optimized for controllers and living-room use.
- Built with SCOS Builder from your own Windows ISO
- Auto-login and Steam shell for a console-style startup
- Steam Big Picture / Steam Gamepad UI as the main experience
- Locked-down Standard environment to reduce accidental desktop access
- Gaming essentials installed during setup such as Steam and supported helper tools
- Windows compatibility for games, launchers, drivers, and anti-cheat systems that expect Windows
How SCOS Works
1. Provide a Windows ISO
SCOS Builder starts from an official Windows ISO provided by the user. SCOS does not distribute Windows.
2. Build the SCOS ISO
SCOS Builder downloads the official SCOS Build Package from GitHub, injects the setup files, and creates the final bootable SCOS installation ISO.
3. Install SCOS Standard
The generated ISO installs SCOS Standard, applies the console restrictions, and prepares the Steam-focused environment.
4. Boot into Steam
After setup, SCOS Standard boots directly into the Steam console experience instead of a normal Windows desktop.
Bootable USB Warning
When creating a bootable USB from a SCOS ISO, do not enable Windows installation customization options.
If your USB creation tool shows options such as bypassing TPM, Secure Boot, RAM requirements, creating a local account, disabling data collection, changing regional settings, or modifying Windows setup behavior, leave all of those options unchecked.
SCOS already includes its own unattended setup configuration. Extra customization options may conflict with SCOS setup files and cause the installation to fail or behave incorrectly. For SCOS ISOs, write the ISO as-is.
The Problem & Our Solution
The Problem
SteamOS is a powerful Linux-based gaming system, but some Windows games, launchers, and anti-cheat systems may still require native Windows behavior or developer-enabled Linux/Proton support.
- Some anti-cheat games may not run when Linux/Proton support is not enabled
- External launchers may require extra work outside Steam
- Windows-only tools and drivers may not be available natively on Linux
Result: some living-room gaming builds still need Windows compatibility, but Windows itself does not feel like a console by default.
The Solution: SCOS
SCOS keeps the Windows foundation and turns it into a more console-like Steam gaming environment. Games and launchers can run with native Windows compatibility, while SCOS Standard limits normal desktop access and focuses the experience around Steam.
SCOS vs SteamOS
SCOS and SteamOS take different approaches. SteamOS is a Linux-based Steam-first operating system. SCOS is a Windows-based console environment designed for Steam gaming while keeping Windows compatibility.
| Category | SteamOS | SCOS |
|---|---|---|
| Base system | Linux-based | Windows-based |
| Main interface | Steam / Steam Deck style interface | Steam Big Picture / Steam Gamepad UI |
| Game compatibility | Strong through Proton, but not perfect | Native Windows compatibility |
| Anti-cheat support | Depends on Linux/Proton support from the game developer | Better chance with Windows anti-cheat games because it runs on Windows |
| Launchers | Best with Steam, other launchers may need extra work | Better compatibility with Windows launchers |
| Performance and weight | Generally lighter | Heavier because Windows is underneath |
| Windows activation | Not needed | Separate from SCOS and handled by the user |
| Maturity | Mature Valve platform | Early public beta |
Powered by Windows — focused for the living room
- Native compatibility for Steam and many Windows PC games
- Launcher compatibility for services that expect Windows
- Driver compatibility through the Windows ecosystem
- Console-style restrictions in SCOS Standard to reduce desktop clutter
Why SCOS?
SCOS is for players who want the comfort of Steam Big Picture, the compatibility of Windows, and the simplicity of a console-style setup.
Native Windows compatibility
Designed for games, launchers, drivers, and anti-cheat systems that expect Windows.
Steam as the shell
SCOS Standard boots into Steam instead of a normal desktop experience.
Built for the TV
A console-style direction focused on living-room gaming.
Public build pipeline
SCOS Builder creates a SCOS installation ISO from your own Windows ISO.
What SCOS Standard Does
- Uses Steam Big Picture / Steam Gamepad UI as the main shell after setup.
- Boots straight into the Steam console environment on startup.
- Restricts normal Windows desktop access in the public Standard edition.
- Allows approved system panels such as Sound settings where needed for audio device setup.
- Uses SCOS Builder to create a repeatable installation ISO from an official Windows ISO.