Stefanos Panagiotidis - Replicated Ragdoll Plugin

Replicated Ragdoll — Multiplayer Physics Replication

Replicate realistic skeletal mesh ragdoll physics across multiplayer games in Unreal Engine.

Replicated Ragdoll is a C++ plugin designed to synchronize physics-driven skeletal meshes between the server and connected clients. Unreal Engine does not provide complete skeletal ragdoll pose replication out of the box, making multiplayer ragdolls challenging to implement reliably.

This plugin provides a reusable, server-authoritative solution with Blueprint-accessible controls, configurable physics synchronization, interpolation, and Character integration.

Whether you’re developing a multiplayer shooter, survival game, physics-based experience, or cooperative title, Replicated Ragdoll provides a foundation for synchronized ragdoll behavior without having to build a custom replication system from scratch.

Key Features

Multiplayer Ragdoll Replication

  • Server-authoritative skeletal mesh physics synchronization.

  • Replicates ragdoll body positions and rotations across connected clients.

  • Supports dedicated servers and listen servers.

  • Full-body and partial ragdoll support.

  • Synchronization for physics impulses and interactions.

Smooth Physics Synchronization

  • Buffered snapshot interpolation for smoother remote ragdoll movement.

  • Configurable physics correction and interpolation settings.

  • Velocity-based correction to reduce visible snapping.

  • Adjustable replication frequency and physics-body limits.

  • Distance-based replication update optimization.

  • Physics sleep and wake synchronization.

Character Integration

  • Compatible with Unreal Engine Character-based actors.

  • Optional capsule following during full-body ragdolls.

  • Configurable bone tracking for capsule movement.

  • Ragdoll activation, deactivation, and recovery functionality.

  • Restoration of skeletal mesh attachment and relative transforms.

  • Configurable capsule repositioning during recovery.

Blueprint-Friendly

  • Start and stop replicated ragdolls.

  • Apply physics impulses.

  • Wake or reset ragdolls.

  • Retrieve ragdoll state, root location, velocity, and replication information.

  • Configure replication and smoothing settings directly in the Details panel.

  • Integrate into existing gameplay systems without modifying the plugin’s source.

Performance and Customization

  • Configurable network update rates.

  • Prioritized physics-body replication.

  • Adjustable bandwidth and correction settings.

  • Sleeping-state optimizations for stationary ragdolls.

  • Suitable for different character types and Physics Assets.

Included Demo Content

The plugin includes an example level and Blueprint setup demonstrating multiplayer ragdoll functionality.

The sample project provides a starting point for experimenting with ragdoll activation, physics interactions, and replicated character behavior.

All plugin source code is included, allowing developers to inspect, modify, and extend the implementation.

Technical Information
  • Engine: Unreal Engine 5.5, 5.6, 5.7, and 5.8

  • Implementation: C++ with Blueprint-accessible functionality

  • Networking: Server-authoritative replication

  • Multiplayer: Dedicated servers and listen servers

  • Platform: Windows (Win64)

  • Physics: Unreal Engine Chaos Physics

  • Source Code: Included

  • Example Content: Included

Requirements

A Skeletal Mesh with a properly configured Physics Asset is required.

Replication behavior and performance depend on the number of simulated physics bodies, configured update frequency, network conditions, and project-specific character setup.

Developed by Gamelance Studios

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