Microsoft says devs can now bring Win32 games to the Microsoft Store, a shift away from the store's previous Universal Windows Platform requirement for games
It's been a long time coming — Microsoft had a dream with Windows 8 that involved universal Windows apps that would span across phones …
Context & Ripple Effects
The UWP-only rule for games was the last wall of the universal-app strategy Microsoft built around Windows 8 — one app model spanning PC, Xbox, and a phone business that has since collapsed. The retreat has been incremental: repackaged Win32 desktop apps were admitted in September 2016, and the full Win32 version of Office followed in 2017.
Opening the store to Win32 games completes the pattern for the category where UWP resistance was fiercest — major PC studios never wanted to rewrite engines for a sandboxed platform. Two years later, sources reported Microsoft going further still, planning to accept unpackaged Win32 apps and third-party commerce platforms in a revamped Windows 10 Store.
First-order effects
- PC game developers can now list their existing Win32 builds on the Microsoft Store without porting to UWP, removing the main reason big studios skipped the storefront.
- The Microsoft Store's game catalog stops being gated by app model, putting it in direct catalog competition with Steam for the first time on equal technical footing.
Second-order effects
- Valve faces a first-party Windows storefront that no longer demands rewrites, pressuring Steam's default position as the de facto PC game distribution channel.
- Admitting Win32 games makes the store's commerce terms the next battleground — the direction later confirmed by reports of Microsoft allowing third-party payment platforms, which would erode its own cut.
Third-order effects
- If the arc holds — desktop apps in 2016, Office in 2017, games in 2019, unpackaged apps and external commerce after that — Microsoft's platform control shifts from API gatekeeping to services layered on top, like Game Pass, rather than the store itself.
- UWP's collapse as a mandatory target marks the end of the write-once-run-everywhere Windows ambition, leaving Xbox and PC as separate ecosystems joined by services instead of a shared app binary.
The trend: Microsoft is systematically dismantling its own Windows Store walls, trading UWP platform control for catalog relevance against Steam.