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Yes. Connect a PC to your TV, launch Steam’s controller-focused Big Picture mode, and use a compatible game controller from the couch. The PC can remain upgradeable, but what you can replace later depends on its exact case, motherboard, power supply, cooling, and components.
How does a PC become a living-room Steam console?
The basic setup is a PC connected to a TV, Steam installed on the PC, and a controller that works with the computer, operating system, and games you want to play. Steam Support describes Big Picture as a mode designed for TV and game-controller use, so you can access Steam games from the couch. It is available on Windows 10 or newer, macOS 12 or later, and current Ubuntu-based Linux systems. Steam Support’s Big Picture documentation lists the supported operating systems.
Whether the PC can connect to your TV depends on the PC’s hardware. Check that it has a video output compatible with the TV and that the connection supports your intended resolution and refresh rate. You will also need a practical way to connect or pair the controller; range and reliability matter when you are seated away from the PC.
Set up the couch interface
- Connect the PC’s video output to the TV and select the matching input on the TV.
- Install and open Steam on the PC, then connect or pair a controller supported by your operating system and the games you play.
- Open Steam Big Picture mode and confirm that you can navigate its interface with the controller.
- Launch a game you actually intend to play and check that its controls, display resolution, and performance suit your setup.
Big Picture provides the TV-oriented Steam interface; it does not turn every PC game into a console-style experience or establish that every game works with every controller or operating system. Check compatibility for the games and other software you need, particularly if you are considering Linux.
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Should you use Windows, Linux, or SteamOS?
Steam Big Picture is an interface available on supported desktop operating systems, while SteamOS is a separate gaming-focused operating system. Valve presents SteamOS as gaming-focused while retaining PC flexibility, including a desktop mode for installing other launchers and software. Valve’s SteamOS page describes that approach.
Do not assume that a PC can run SteamOS with the same support as a device designed for it. Valve’s SteamOS OEM guidance explains that device support needs to be integrated into SteamOS. Hardware support and game compatibility therefore belong in the decision, alongside the interface you prefer.
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What does “upgradeable” mean in a compact PC?
Upgradeability is component-specific, not a promise attached to a small PC category. Before choosing a machine, identify what can be removed or replaced, what parts physically fit, and what the system can support.
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- Storage: Confirm the drive form factor and interface, available slots, and how difficult the drive is to reach. A free M.2 slot is useful only if the computer supports the drive you intend to install.
- Memory: Check the memory type, capacity limits, number of slots, and access method. Soldered memory cannot be upgraded like removable modules.
- Graphics and power: A GPU upgrade depends on case clearance, power-supply capacity and connectors, cooling, and motherboard compatibility. In some compact systems, the graphics hardware may not be a replaceable card.
- Case and cooling: Measure the PC and the shelf or cabinet space, including room for ventilation and cables. Restricted airflow can affect temperatures and noise.
- Operating system and support: Verify that the hardware is supported by the operating system you plan to use and that your required games and software work on it.
For example, PC Gamer’s November 12, 2025 report on Valve’s Steam Machine says its storage is replaceable and identifies an NVMe slot that can take a 2280 drive, with installation trade-offs. The report also describes SO-DIMM RAM as replaceable, though access is more involved. Those details apply to that device, not to compact PCs generally. PC Gamer’s Steam Machine report provides the device-specific account.
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How is Valve’s Steam Machine different from a DIY living-room PC?
Valve announced Steam Machine in 2026 as a compact PC running SteamOS, intended to make living-room PC gaming easier through the Steam interface and Proton. It is one example of the form factor, not a required design for a custom build. Valve’s Steamworks announcement describes the product and its software approach.
Valve has described the Steam Machine as roughly six times as powerful as a Steam Deck. That is a manufacturer comparison, not an independent benchmark or a guarantee about performance in any particular game. In a November 12, 2025 PC Gamer report, Valve engineer Yazan Aldehayyat described a target of playing every Steam game at 4K60 with some form of upscaling such as FSR. That is a stated target, not a verified performance guarantee. Neither statement establishes how a different PC will perform.
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- Cool While Gaming: In conjunction with an ARGB fan Air Cooler, the Codex R2 features four system cooling fans; three in the front and one in the rear to pull in cool air and push heat out of the PC.
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A DIY build gives you control over the selected parts, but it also makes compatibility and upgrade access your responsibility. A compact prebuilt may simplify the initial setup, yet its replaceable parts and access can be limited. A larger conventional PC may provide more space for components, but it can be harder to place discreetly in a living room. The sources available here do not establish an apples-to-apples price or performance comparison across these options, so choose based on the actual system specifications and your needs.
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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →How should you choose a PC for your TV and games?
Start with your intended games and display rather than with a generic “gaming PC” label. The right choice depends on your resolution and performance goals, room layout, tolerance for fan noise, and the kinds of upgrades you expect to make.
- Game and resolution target: List the games you care about and the TV resolution and refresh rate you want to use. Look for evidence specific to that PC and those games rather than relying on broad comparisons.
- Physical fit: Check the PC’s dimensions, cable clearance, and the space available on the shelf. Leave room for airflow instead of treating a tight cabinet as an open test bench.
- Noise and heat: Consider where the computer will sit and whether fan noise will be noticeable during quiet scenes. Performance and cooling behavior depend on the actual hardware and placement.
- Controller and input: Confirm controller compatibility and how you will connect it from the couch. Consider whether you also need a keyboard and mouse for setup, desktop use, or other launchers.
- Upgrade access: Check the manufacturer’s specifications or documentation for memory, storage, graphics, power, and case limits. Do not infer upgradeability from appearance or size.
- Software compatibility: Confirm that the operating system supports the hardware and that your games and other required programs work with it.
What can’t be assumed from the console-style setup?
Using Big Picture makes Steam easier to navigate on a TV, but it does not establish a particular frame rate, noise level, or universal compatibility. Those depend on the selected PC, its setup, the game, and the operating system. Nor does a compact design automatically mean easy repairs or upgrades: access varies by model.
The available evidence does not support a specific current custom parts list or price. Treat Valve’s Steam Machine as an example of a SteamOS living-room PC and verify any candidate computer against its own specifications, support information, and the games you intend to play.
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