Define the North Star metric for Xbox Game Pass serving developers

Problem Statement Description

Product context: Microsoft is a productivity, software, AI, gaming, and cloud company; its products include Windows, Microsoft 365, Teams, LinkedIn, Xbox, Azure, Dynamics, and Copilot.

Microsoft wants to evaluate how well Xbox Game Pass creates value for game developers and publishing partners, not just for players. In this interview, you are asked to define a North Star metric for the developer side of Xbox Game Pass, where developers may use the platform to reach subscribers, drive engagement, monetize content, build franchise awareness, and make informed decisions about future investment.

The challenge is that “serving developers” can mean multiple things: discovery, player acquisition, engagement, revenue, retention, portfolio performance, or long-term ecosystem health. Your metric definition should clarify which developer outcome matters most, how it connects to Microsoft’s Game Pass strategy, and how it avoids optimizing for player-side growth at the expense of developer trust or sustainability.

You should assume Xbox Game Pass includes a mix of first-party, indie, and third-party titles across console, PC, and cloud. Developers may have different goals depending on game type, business model, lifecycle stage, and partnership structure. Your task is to frame a metric that can guide product and business decisions across this ecosystem.

The experience should consider:

- The primary developer value being measured and why it is the right focal point for a North Star metric.

- A precise metric definition, including numerator, denominator, time window, and eligible developer/title population.

- How the metric would be instrumented using Game Pass gameplay, discovery, catalog, commercial, and developer-facing data.

- Important cohorts, such as indie vs. AAA, new vs. established titles, first-party vs. third-party, launch-window vs. back-catalog games, and console vs. PC/cloud usage.

- Guardrail metrics to ensure the North Star does not create harmful incentives for players, developers, catalog quality, revenue, or platform trust.

- How the metric would be interpreted for decision-making across product, partnerships, catalog curation, developer tools, and executive reporting.

- Edge cases such as short-session games, multiplayer titles, episodic content, free-to-play extensions, regional differences, and games with monetization outside the subscription.

Your goal is to propose a clear, decision-useful North Star metric that captures meaningful developer success on Xbox Game Pass while acknowledging trade-offs, measurement limitations, and the broader Microsoft gaming ecosystem.