Replic

Replic is a Blueprint-first replication plugin for Unreal Engine 5.6.

It provides explicit Blueprint nodes for replicated property writes, reads, events, observers, permissions, persistent late-join state, and component transform replication.

Current version: 0.2.1

Preview

Replicated door logic with server-side state and replicated sound trigger	Component transform replication with persistent late-join state
Custom event replication settings directly in Blueprint details	Typed named values for replicated event arguments

Features

• Runtime transport component for replicated actors
• Replic-marked Blueprint variables
• Explicit setter and getter nodes
• Replicated custom events
• Typed event arguments
• Replicable sound triggers through Replic events
• Array, set, and map support
• Container delta operations
• Property change observers
• Persistent state for late joiners
• Permission modes:
  • None
  • OwnerOnly
  • ServerOnly
  • Custom
• Scene component transform replication:
  • relative or world transform
  • location, rotation, and scale channels
  • optional persistent transform state

Requirements

• Unreal Engine 5.6
• Visual Studio 2022 with C++ build tools

Installation

Copy the plugin into your Unreal project:

YourProject/Plugins/Replic

Then open the project and enable the plugin if needed.

Basic Usage

1. Enable Replicates on the actor that owns the replicated state.
2. Add ReplicTransportComponent to that actor.
3. Create a Blueprint variable or custom event.
4. Enable the Replic settings in the Details panel.
5. Use Replic nodes such as:
   • Set Marked Int
   • Get Marked Int
   • Replic Set Array
   • Add To Marked Array
   • Replic Call Event
   • Bind Marked Property Changed

For one-shot sounds such as doors, pickups, buttons, or impacts, trigger Play Sound at Location from a Replic custom event. Use persistent state for the gameplay result, not for replaying old sounds to late joiners.

For actor state changes, keep gameplay authority on the server and replicate the visible result. A common pattern is:

• ServerOnly event for the authoritative state change
• ReplicateAll event for one-shot cosmetic effects such as sounds
• persistent property or component transform state for late joiners

See QuickStart for a small counter, door, and sound workflow.

Packaging Note

For packaged builds, use a C++ project or an equivalent C++ build setup so Unreal can build and link the plugin runtime module.

License

MIT License. See LICENSE.

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