Getting Started
Game Harness
Release-grade browser QA primitives for TypeScript games.
Game Harness turns a successful build into evidence: silent browser sessions, deterministic device tiers, byte-exact screenshots, production-runtime proof, and Lighthouse gates.
It is intentionally a focused library rather than a test framework. Your game keeps its own journeys, assertions, art direction, and audio engine; Game Harness supplies the reusable safety and orchestration layer around Playwright and Vitest Browser Mode.
Why Game Harness
- Silent by construction. Chromium launches with
--mute-audio, and tests wait for an application-owned runtime mute marker before interacting. - No accidental server reuse. CI ports are deterministic per job, preview commands use strict-port semantics, and production verification refuses an already-reachable readiness URL.
- Visual evidence that fails closed. Screenshot baselines are scoped, profile-aware, and checked through Git without fuzzy thresholds or shell interpolation.
- Real package boundaries. Framework peers stay optional and isolated to subpath exports, with clean ESM, CommonJS, type, CLI, and install smoke tests.
Start with Getting started to choose the integration your game needs.
