What problem does it solve? Building stable physics in Unreal Engine 5.8 requires coordinating collision channels, rigid bodies, constraints, timestep settings, destruction, cloth, and network replication, and misconfiguring any one of them causes tunneling, jitter, exploding ragdolls, or rubber-banding in multiplayer. This Skill provides a structured decision workflow and deep reference material so you choose the right physical contract first and tune it with evidence instead of guesswork. ## Core Features & Use Cases - System selection workflow: Choose between query-only collision, rigid bodies, Physics Constraints, Physics Assets, Geometry Collections, Chaos Cloth, or cached playback before tuning anything. - In-depth references: Ten focused guides covering collision and queries, forces and sleep, constraints and drives, substepping and async physics, networked physics replication modes, ragdolls, destruction and Chaos Fields, cloth, debugging, and use-case recipes. - Debugging and performance guidance: Symptom-to-cause matrix plus Chaos Visual Debugger and Timing Insights workflows for diagnosing instability and profiling body, contact, and constraint budgets. - Use Case: You need a breakable wall in a multiplayer shooter. The Skill walks you through authoring a clustered Geometry Collection with anchored supports and thresholded transient strain fields, bounding debris lifetime, and selecting Predictive Interpolation or Resimulation for network authority. ## Quick Start Use the unreal-chaos-physics skill to design and debug a stable networked rigid body prop with proper collision channels and replication settings.
