You can easily use TCP and UDP connections to send and receive data in blueprints with this plugin . This is a Server. You can buy a client here. All functions can be used independently in almost all Blueprints. You can start the server in Blueprint A. You can receive the data Blueprint B and C. Then you can stop the server in Blueprint X. Use UDP for streams, gaming (your own replication). For everything else, like matchmaking, lobby, chat, is TCP suitable. I recommend my JSON plugin for data communication. You don’t need C++. You can use this tool for testing and developing. Nativizing may not be possible in the blueprints where the plugin is used. See Documentaiton.

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Version 1.12 and 1.20 tested on: Windows 10, Mojave, Android 7 and 9, IOS 12.

Changelog (5.00, 5.10, 5.20)

• (05/30/2023) Version 1.51: Replaced an Unreal function that limited the maximum number of server instances to 12. There is no longer a limit.

Changelog (4.27, 5.00, 5.10)

• (01/03/2022) Version 1.50: Memory management revised to avoid memory leaks. You don’t have to connect a target in Blueprints anymore (except for the events). Minor bug fixes.

Changelog (4.26, 4.27, 5.00)

• (09/26/2022) Version 1.44: Bugfix: Cross compiling should work now.
• (09/02/2022) Version 1.43: Bugfix: Plugin could not be compiled on Linux.
• (07/19/2022) Version 1.42: Bugfix: Plugin was not able to compile in C++ projects.
• (04/22/2022) Version 1.41: You can now pass the RCON password as a parameter instead of loading it from a file.
• (04/18/2022) Version 1.40: RCON protocol implemented. You can create an RCON server that communicates with third party RCON clients.

Changelog (4.25, 4.26, 4.27)

• (12/07/2021) Version 1.31: Added function to start the UE4 game server (game host) at runtime. Added various integer and float to bytes and back functions.
• (02/14/2022) Version 1.32: See version 1.23. Additionally added a better function. See documentation.
• (10/17/2021) Version 1.30: IPv6. AES encryption/decryption. File sending and receiving over TCP (without RAM consumption).

Changelog (4.23, 4.24, 4.25)

• (07/16/2020) Version 1.23: If you send small messages very quickly over TCP, they are sometimes merged , or if you send large messages, they are split. This problem can now be solved with the node “TCPMessage Wrapping

Changelog (4.22, 4.23, 4.24)

• (04/30/2020) Version 1.21: UDP packet size can be determined.