A Steam Machine is a small desktop computer that runs Valve's SteamOS operating system and plays games from Steam

A Steam Machine is a compact computer designed specifically to play video games from Steam, Valve's digital game store. Instead of Windows or macOS, it runs SteamOS, a Linux-based operating system built for gaming. The hardware sits between a console and a traditional PC — it connects to your TV or monitor, uses a controller, and boots directly into a game library rather than a traditional desktop.

Steam Machines were released starting in 2015 as Valve's attempt to bring PC gaming into living rooms without requiring users to buy a full Windows computer. Several manufacturers made their own versions under the Steam Machine brand, including Alienware, Corsair, and Zotac. Each model had different processing power and price points, but all shared the same core purpose: gaming on your TV with a simpler interface than a traditional PC.

Key Takeaways

  • Steam Machines run SteamOS, a Linux operating system designed for gaming, rather than Windows or macOS.
  • The hardware is compact and connects to a TV, making it function more like a console than a traditional desktop computer.
  • You control games with a controller rather than a keyboard and mouse, though you can add those peripherals if needed.
  • Steam Machines can play any game in your Steam library that supports Linux, which is a smaller selection than Windows Steam games.
  • Valve stopped manufacturing its own Steam Machine in 2018, though third-party manufacturers still produce similar devices.

How Steam Machines Differ from Regular PCs and Gaming Consoles

A Steam Machine occupies a middle ground between a traditional gaming console and a full PC. A console like a PlayStation or Xbox has fixed hardware that manufacturers control completely, and games are built specifically for that hardware. A Steam Machine, by contrast, is a PC that runs Linux instead of Windows — it has upgradeable components and plays games from an open store, but it's designed to feel and function like a console.

The biggest practical difference is the operating system. A Windows gaming PC boots into a desktop with a taskbar, file explorer, and all the traditional computer interface elements. A Steam Machine boots directly into Big Picture Mode, a full-screen interface showing your game library and controller-friendly menus. You can access the desktop if you need to, but the default experience is console-like. This also means Steam Machines cannot run Windows-only software like Microsoft Office or most professional applications — they're built for gaming first.

What Hardware Is Inside a Steam Machine

Steam Machines vary in processing power depending on the manufacturer and model, but they all contain standard PC components: a processor (CPU), graphics card (GPU), memory (RAM), and storage. Early models used Intel or AMD processors paired with NVIDIA graphics cards. The specifications ranged from budget-friendly machines with entry-level components to high-end models with performance comparable to a mid-range gaming PC.

Because they're PCs, Steam Machines can theoretically be upgraded — you can add more RAM, swap the storage drive, or replace other components if you have the technical skill. However, most users treat them like consoles and don't open them up. The compact form factor means less room for upgrades than a traditional tower PC, so upgrading is more limited than it would be on a full desktop.

Which Games You Can Play on a Steam Machine

You can play any game in your Steam library that has a Linux version. This is the critical limitation: not every Steam game supports Linux. Many popular titles do — games like Proton-compatible titles, native Linux games, and older games often work — but newer AAA games frequently launch on Windows only. When you look at a game on Steam, the store page lists which operating systems it supports, so you can check before purchasing.

Valve developed a tool called Proton that allows some Windows-only games to run on Linux through compatibility layers, which expanded the library available on Steam Machines. However, Proton is not perfect — some games run flawlessly, others have minor issues, and some don't work at all. If you're considering a Steam Machine, you should check whether the specific games you want to play have Linux support or Proton compatibility.

The Current State of Steam Machines

Valve stopped manufacturing its own Steam Machine in 2018 after the initial push didn't gain the market share the company hoped for. However, the concept didn't disappear entirely. Third-party manufacturers like Alienware, Corsair, and others continued making SteamOS-based machines, and the market for small form-factor gaming PCs grew. Today, you can still purchase new devices that function similarly to the original Steam Machines, though they may not carry the Steam Machine brand name.

SteamOS itself continues to evolve. Valve released SteamOS 3.0 in 2022, which powers the Steam Deck — a handheld gaming device that brought the Steam Machine concept to portable gaming. While the Steam Deck is not a traditional Steam Machine, it uses the same operating system and serves a similar purpose: playing your Steam library on a non-Windows device with a controller-first interface.

Setting Up and Using a Steam Machine

Setting up a Steam Machine is straightforward. You unbox it, connect it to power and your TV or monitor via HDMI, and turn it on. It boots into Big Picture Mode, where you sign in with your Steam account. Once logged in, your entire Steam library appears on the screen, organized and ready to launch with a controller. You navigate with the included controller, select a game, and start playing.

The controller that comes with most Steam Machines is the Steam Controller, a unique gamepad with touchpads instead of a traditional right analog stick. It takes some adjustment if you're used to standard controllers, but it's fully customizable — you can remap buttons and adjust sensitivity through the SteamOS settings. If you prefer a traditional controller layout, you can connect a standard Xbox or PlayStation controller instead, though some games may not support it as well.

Advantages and Limitations of Steam Machines

The main advantage of a Steam Machine is simplicity. If you want to play PC games on your TV without building or configuring a Windows PC, a Steam Machine handles that out of the box. The interface is clean, the setup is minimal, and the experience is closer to a console than a traditional PC. They're also generally less expensive than a comparable gaming PC, especially at the budget end of the market.

The limitations are significant. The Linux game library is smaller than the Windows library, so you may not be able to play every game you want. Performance varies depending on the model you buy — a budget Steam Machine won't run demanding new games at high settings. If you need to use Windows software or want maximum gaming flexibility, a Windows PC is the better choice. Steam Machines are best for people who want a dedicated gaming device for their living room and don't mind a smaller game selection.

Frequently Asked Questions

Can I install Windows on a Steam Machine?

Technically yes, but it defeats the purpose. Steam Machines are designed to run SteamOS, and while the hardware is standard PC hardware, installing Windows voids the intended experience and may require additional drivers or configuration. If you want Windows, buying a Windows gaming PC is simpler and more practical.

Is a Steam Machine the same as a Steam Deck?

No. A Steam Deck is a handheld gaming device, while a Steam Machine is a desktop computer that connects to a TV. Both run SteamOS and play games from your Steam library, but they're different form factors designed for different uses. A Steam Deck is portable; a Steam Machine stays in one place.

Do I need a Steam account to use a Steam Machine?

Yes. A Steam Machine requires you to sign in with a Steam account to access your game library. You don't need to own any games — you can browse the store and purchase games directly on the machine — but you do need an active Steam account.

What controller should I use with a Steam Machine?

The included Steam Controller works with all Steam Machines, though it has a learning curve. You can also connect an Xbox controller, PlayStation controller, or most standard gamepads. Check the game's controller support page on Steam to see which controllers work best for the specific game you want to play.

Where can I buy a Steam Machine now?

Valve no longer manufactures Steam Machines, but third-party manufacturers like Alienware and Corsair still make similar devices. You can also find used original Steam Machines on secondhand markets. Alternatively, the Steam Deck offers a portable version of the same concept if you're interested in SteamOS gaming.