Running x86 Steam titles on ARM64 Linux machines just left beta. Canonical has promoted its Steam Snap for ARM64 to the stable channel, bundling Valve's storefront alongside the FEX emulator so that x86 and x86_64 binaries execute on aarch64 hardware without per-game tinkering. The package spent months in the Edge and Candidate channels before earning the stable label.
Validated hardware spans the recent crop of ARM workstations and laptops landing in Linux gaming territory. Canonical lists NVIDIA's DGX Spark and other GB10 reference designs including the Dell Pro Max GB10, Qualcomm Snapdragon X laptops, and Radxa's Orion O6 and O6N boards as known-good targets. The Orion O6 stands out among the validated lineup, built around the Cix CD8180 in a mini-ITX form factor with a discrete PCIe GPU slot, putting it closer to a small-form-factor desktop than a Pi-class hobby board.
FEX is the open source linchpin doing the heavy lifting, translating x86 instructions to AArch64 at runtime and pairing with a RootFS overlay that supplies the x86 system libraries Steam expects. Recent FEX releases have leaned into JIT improvements and better thunking for Vulkan and OpenGL calls, which is what lets a Steam library on these chips behave more like a native Linux session than an emulator demo. An Edge channel remains live for experimental work while the stable track inherits the verified configuration.
Mitchell Augustin, the Canonical engineer who focuses on NVIDIA DGX on Ubuntu, posted the stable announcement on the Ubuntu Discourse. Installation drops to a single snap install steam invocation on supported ARM64 Ubuntu releases.