Soak Test A soak test (also called an endurance test) is an extended play session run with specific observation goals. Unlike a smoke check (broad critical path, 10 min) or a single-feature playtest ( 30 min), a soak test runs for 30 minutes to several hours to surface: - Memory leaks — gradual heap growth that only appears after scene transitions - Performance drift — frame time degradation that worsens over time - State accumulation bugs — issues that only appear after N repetitions of a mechanic (inventory full, score overflow, AI state corruption) - Fun fatigue — mechanics that feel good…