A telemetry contract for a mobile game soft launch

When preparing a mobile game for a limited release, it is crucial to create a one-page telemetry contract. This document prevents teams from misinterpreting broken event triggers as poor retention. Begin by asking a key question, not listing events: Can a new player complete the first mission without assistance on the target device class?

Specify the build version, target audience, observation window, and owner. Define the essential events to answer the question: session_started, mission_started, mission_completed, and an abandonment or failure state. Crash traces and device/build identifiers provide context but do not replace player behavior. Each event requires a trigger, allowed properties, and an expected count.

For instance, mission_completed should only fire once after the game state commits the result, not every time a completion animation replays. If the game functions offline, document how events queue and how duplicates are handled upon reconnection, as retries can misrepresent the completion funnel. Ensure test traffic is distinct from release traffic; validate events in a development or test environment before the limited release, and confirm production events are sent to the correct environment.

Unity Analytics allows environment separation; otherwise, internal QA sessions mixed with real players are not valid evidence. Conduct a small acceptance matrix prior to opening the audience: install and complete mission, start without completion, lose connection and retry, crash before the objective, and crashes with correlated last known stage.

Internal QA sessions must be excluded or clearly segmented from release analysis. Do not include personal identifiers in public reports, decide on required data, and check privacy requirements before instrumenting user journeys. Before analyzing graphs, decide the outcomes: continue to the next bounded audience, fix and retest, or stop or rescope.

Label a tiny or biased cohort as inconclusive. If the build changes during testing, split results by version. If an event is unreliable, mark the measurement as invalid, not as player failure. While this contract is one component of a broader release decision, it is crucial. Consider build stability, load support, store availability, and the actual first-session experience.

The broader game soft-launch decision guide offers additional context on beta testing, limited-market releases, staged app updates, and the evidence a game owner should request from the development team. The final deliverable is not a collection of charts, but a versioned build, a verified event contract, and a documented go/fix/stop decision that another team member can audit.