A free shared server that lets RK Tactical pilots see and fight each other online, with a live board showing who is flying right now.
The RK Tactical Companion is the Windows app that connects the RK Tactical Panel to the RK Tactical Relay, a free public server for multiplayer. Run it next to Microsoft Flight Simulator and you share one worldwide room with every other pilot who is connected. It also plays the missile warning sounds on its own, so you can use it for single player too.
See who is flying right now on the Live Board: rk.hangaraddons.com
rk.hangaraddons.com, with the address already filled in.2 files available
rk.hangaraddons.com on TCP port 8787, or port 443 if you use the encrypted address below.| Key | What it does |
|---|---|
L | Plays the launch warning, to test your audio |
M | Turns the active missile warning on or off, to test it |
N | Changes your pilot name and reconnects |
Q | Quits |
Everything is in companion.ini, next to the exe.
| Setting | What it does |
|---|---|
display_name | The name other pilots see. The app sets it for you on first run. |
relay_url | The server address. Use wss://rk.hangaraddons.com/ws for an encrypted connection, or if your network blocks port 8787. |
launch_volume and active_volume | Volume of the launch warning and the active missile warning, from 0 to 2. |
simconnect_host | Leave blank when MSFS runs on this PC. Set it to the address of the MSFS PC to run the Companion on another computer. |
simconnect_port | The SimConnect port on the MSFS PC. 500 by default. |
If you want MSFS to have the whole PC to itself, run the Companion on a second PC on your network. The panel stays in MSFS and only the Companion moves.
SimConnect.xml.example from the download into the MSFS settings folder and rename it SimConnect.xml. For the Store or Xbox version of MSFS 2020 that folder is %LOCALAPPDATA%\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache, and for Steam it's %APPDATA%\Microsoft Flight Simulator. MSFS 2024 uses a similarly named folder.Address to the IPv4 address of the MSFS PC. Allow the port (500 by default) through that PC's firewall, then restart MSFS.simconnect_host in companion.ini to the same address.The warning sounds play on the PC running the Companion, so use its speakers or headphones. SimConnect isn't encrypted, so only do this on your own network or a VPN.
| Problem | What to check |
|---|---|
| Stuck on "Waiting for MSFS" | MSFS is running and a flight is loaded. If you use another PC, check SimConnect.xml, the address and the firewall. |
| Never says "Multiplayer relay connected" | Your internet connection, and that relay_url in companion.ini starts with ws:// or wss://. Try wss://rk.hangaraddons.com/ws if port 8787 is blocked. |
| Connected, but you see 0 contacts | Nobody else is flying right now. Check the Live Board to see who is online. |
| The name didn't change | Press N, type the new name and press Enter. If it says it couldn't save, move the folder somewhere you can write to. |
When you report a problem, please include whether you use MSFS 2020 or 2024, your aircraft, what you expected and what happened, and the last few lines from the Companion window.
ws:// address isn't encrypted. Use the wss:// address if that matters to you.No ratings yet.
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Changes in 1.5.3: if someone is already using your name you are given the same name with a number added, and the Companion tells you.
Install: extract the zip and copy the rk-tactical-panel-24 folder into your MSFS Community folder. Start MSFS, open the RK Tactical Panel from the toolbar, and run the Companion next to the sim to fly online.
rk-tactical-panel-24 folder into your MSFS Community folder.RKTacticalCompanion.exe and leave its window open while you fly. The first time, it asks for the name other pilots will see.Close the window or press Q to leave multiplayer.
Windows SmartScreen may warn you the first time, because the app isn't code signed yet. Choose More info, then Run anyway.
Yes. RK Tactical Companion can be downloaded free from Hangar Addons. It is released as Freeware.
RK Tactical Companion is an addon in the Utilities category for MSFS 2024 and MSFS 2020.
The quickest way is the Hangar Addons Manager: select Add to Addon Manager on this page and it downloads and installs RK Tactical Companion in the right folder. You can also download the file (6 MB), unpack it and copy it into your MSFS 2024 addons folder. The installation guides on Hangar Addons show where that is.
RK Tactical Companion was made by =rk=.
The latest version is v1.5.3, last updated on October 30, 2026.

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