Valve is closing the book on native 32‑bit Windows support for Steam: starting January 1, 2026, the Steam client will no longer be supported on 32‑bit versions of Windows, a move that Valve says affects roughly 0.01% of users but carries outsized implications for legacy machines, embedded systems, and some corners of the retro‑gaming community.
Background
Steam has been the dominant PC game storefront for nearly two decades, evolving alongside Windows itself. For most of that time the...