EVERYTHING
According to Eurogamer, the potential of Valve's Steam Machine is currently being hampered by a persistent software bottleneck rather than hardware deficiencies. While the device is designed to offer a high-end gaming experience similar to a console, its reliance on SteamOS introduces specific compatibility issues for certain blockbuster titles.
The Linux anti-cheat barrier
The core issue stems from how anti-cheat programs interact with operating systems. Most modern competitive games employ security software that requires deep system access to prevent cheating. Because these programs are frequently designed specifically for Windows, they often fail to function on Linux-based environments. Even if a game features an offline mode or single-player content, the presence of a mandatory anti-cheat check can render the entire application unplayable on SteamOS.
While some developers have successfully integrated Linux support for their security protocols, many have not. For users who want to bypass these restrictions, installing Windows is an option, but this would effectively negate the streamlined, console-like interface that defines the Steam Machine's value proposition.
Major titles currently unsupported
Several high-profile games are currently listed as incompatible due to these technical constraints. Notable examples include:
Future outlook for SteamOS
The situation remains complex because some developers may eventually find a middle ground, but there is currently no guarantee of widespread support. For many players, this means the Steam Machine might not be a complete replacement for a traditional PC or console just yet. The success of the hardware will depend on how quickly major publishers move toward cross-platform anti-cheat solutions that can coexist with Valve's Linux ecosystem.