Steel Sky LLC is an independent software studio developing proprietary applications powered by modern AI. We design, engineer, and ship — quietly, deliberately, and on our own terms.
We leverage large language models — including Claude, GPT, and Codex — not as novelties, but as core engineering tools. They're integrated into every stage of our workflow: architecture, implementation, testing, and iteration.
This isn't about replacing engineering judgment. It's about multiplying output. A small team — in our case, a team of one — can now build at a scale that previously required a department.
Rooted in over a decade of consumer software experience at one of the most successful casual game studios in history, Steel Sky's founding principle is simple: if the user has to think about how your app works, you've already lost them.
Every product we develop is designed to be understood in seconds. No tutorials. No onboarding flows. No friction. Just clarity.
Desktop and mobile applications built in C# using Microsoft's modern frameworks. One codebase. Every platform. Native feel.
Serverless functions, secure API management, encrypted storage, and scalable compute. Enterprise-grade backend without the enterprise overhead.
Large language models are embedded in our development process — from code generation and review to architecture decisions and rapid prototyping.
Steel Sky LLC was founded by Jeff Weinstein in Pittsburgh, PA — first as a side project, then as a serious venture once the initial prototypes proved viable.
Jeff spent over a decade at PopCap Games (later acquired by EA), joining as the 8th employee. The culture there was small teams, fast iteration, and an almost religious focus on making software that anyone could pick up and immediately understand. That ethos carries forward into everything Steel Sky builds.