Built by Valve, powered by SteamOS, the new Steam Machine is a compact gaming PC. One trying to make good on a promise Valve made a long time ago.

With prototype Steam Machines heading out to reviewers back in 2013, us included, the company had grand plans of reinventing what constitutes a gaming PC around its new creation, a Linux-based operating system called SteamOS. Years on, and following a few failed partner launches that you can read all about in our retrospective of their demise, the project was more or less doomed. By 2018, Valve pulled the plug.

I flew to Valve to test the Steam Machine, Steam Frame and Steam Controller | Critical Rig – YouTube
I flew to Valve to test the Steam Machine, Steam Frame and Steam Controller | Critical Rig - YouTube

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comparative testing on the Lenovo Legion Go S, using SteamOS saw an increase of as much as 32% in Cyberpunk 2077 compared to Windows 11. While improvements may be less pronounced on more powerful hardware, Valve’s own OS should reduce overheads and allow for higher frames per second than comparable kit using Windows.

RX 7600 has a higher clock speed, more CUs, and a higher power draw. If you were to increase the clock speed of the RX 7400, the power draw would increase, and land you roughly in line with the Steam Machine. Though there could be a little more to it than that.

The other point of comparison is the Radeon RX 7600M. First launched in 2023, it is a mobile GPU with 28 CUs and a boost clock of 2.41 GHz. Right on the money. But it only runs up to 90 W. So perhaps there’s a little more headroom for higher sustained clocks on Valve’s semi-custom chip to make up the extra power draw. That makes sense, as a gaming laptop has a much slimmer heatsink and smaller fan available to it than the boxy Steam Machine.

Steam Controllers, replacing the controller’s included puck.

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Valve's new Steam Machine during a visit to Valve HQ in Bellevue, Washington. The Steam Machine is a compact living room gaming PC.(Image credit: Future)Valve's new Steam Machine during a visit to Valve HQ in Bellevue, Washington. The Steam Machine is a compact living room gaming PC.(Image credit: Future)Valve's new Steam Machine during a visit to Valve HQ in Bellevue, Washington. The Steam Machine is a compact living room gaming PC.(Image credit: Future)Valve's new Steam Machine during a visit to Valve HQ in Bellevue, Washington. The Steam Machine is a compact living room gaming PC.(Image credit: Future)

The faceplate is removeable, mainly for removing dust that builds up over time, though Valve is considering how best to offer some level of customisation here. It has a few prototype plates in its office: a wood effect one, a Team Fortress 2 one, and one including an e-ink display monitoring key metrics. Though this is mostly a fun side project than something that’ll end up on sale.

For now, Valve doesn’t seem to have a definitive plan for customisation options. It does have the integrated light strip running above the front I/O. This can be adjusted to display whichever colour you want, or moreover, act as a visual cue of what the Steam Machine is up to. It can display how far a game download has progressed, alert you to messages, and so on. If you don’t like it, you can just turn it off.

“It’s a dead front design, meaning that when you turn it off, you literally can’t see that it exists,” Mucha says.

smaller SSD form factor also used on the Steam Deck.

The Steam Machine, however, does support a more standard 2280 drive with an included standoff. Though installing one would require removing the existing 2230 drive and cloning/starting fresh.

The easier way to expand the Steam Machine’s storage is to use a microSD card. The Steam Machine supports SDXC cards, which are available up to 2 TB and fairly affordable. Valve is confident that games should boot and run just fine from a microSD, though I’d assume you’ll want a reasonably speedy one (100 MB/s+) for the best performance.

The Steam Machine has 16 GB of DDR5 RAM. It uses SO-DIMM memory, which is most often found on gaming laptops, and it is replaceable. However, Valve has warned me that replacing the memory is a bit more involved compared to the NVMe SSD.

I believe replacing the RAM would require removing the outer casing and the heatsink from the motherboard. Though, understandably, no one fancied ripping apart their precious display models during my visit, and we were told to leave our screwdrivers at the door, so I can’t say for sure. The outer casing is removed via four screws on the feet and two screws on the rear, and the core slides out, but beyond that it’s anyone’s guess.

Steam Frame, which exist to ease gamers into what’s possible on the quirkier hardware and what’s not. The more powerful desktop PC that is the Steam Machine shouldn’t be so picky.

Proton is really the secret sauce.

Yazan Aldehayyat, Valve

Part of that is Proton, the compatibility layer that allows games developed for Windows to be run on Linux. Proton’s compatibility is solid these days, the kinks have been largely ironed out, and the concept has been tested thoroughly with the Steam Deck already. There are simply fewer unknowns.

“Proton is really the secret sauce, right? That made this possible. For the past 10 years, we’ve been working on building the compatibility layer to make it so that devs have less work to do to support this device,” Aldehayyat says.

With Proton, most games should work without a hitch. That said, there are still some anti-cheat solutions that do not run on Linux. Games like Battlefield 6 and Fortnite. That wasn’t such an issue with the Steam Deck, portable and underpowered as it is, but you might want your desktop or living room PC to play these games. So it’s worth considering how much these big multiplayer games mean to you.

And, hey, you can always swap SteamOS for Windows 11 on the Steam Machine. Just note, when you do, an angel loses its wings.

“While there is a nice family and interoperability between all three of the devices, and four including Steam Deck, we are still really big fans and committed to the open PC ecosystem. These are your PCs. You can install your own stuff on them, including your own operating system,” Lawrence Yang, designer at Valve, says.

Komodo is the official distributor. That means it’s available in the following countries:

USACanadaUKGermanyFranceAustralia*Japan**South Korea**Taiwan**Hong Kong**

*Valve began shipping direct to Australia later than other countries
**Distributed by Komodo