Steam Transport

FAQ:

Where can i find the Steam example scene

You can find it with the Add-on Example scenes check Importing Examples for more information on this topic.

My steam build crashes after lunching it, what should i do?

Note: This issue may occur if you haven't included a steam_appid.txt file in your build directory. This file is required for Steam integration to work correctly during development and testing.

If your game doesn’t have its own Steam App ID yet, you can use the default test App ID 480 (Steam's Spacewar app) for testing purposes.

Make sure the steam_appid.txt file is placed in the same folder as your game executable, and that it contains your Steam App ID (or 480 for testing).

I created a lobby, but my friend can't find it. What could be the reason?

If your friend is unable to see or join your Steam lobby, here are a few common causes to check:

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🌍 1. Lobby Distance Filter

Your friend might be located in a different region. Make sure the lobby distance filter is set to “Worldwide” in your Steam matchmaking settings. This ensures lobbies are visible across all geographical regions.

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🔓 2. Lobby Access Level

Check that the lobby’s access level is set to “Public”. Private or friends-only lobbies may not appear in the browser unless your friend meets the exact visibility criteria.

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🎮 3. Missing Game Ownership (Custom App ID)

If you're using a custom Steam App ID (such as your own game's App ID), your friend must own and have access to the same game through Steam. If they don’t have a valid copy, the lobby may not be visible or accessible to them.

I got this Error : [16:50:22] (CLIENT): Invalid host address '7123518916342:4550'! IP and port should be separated by a colon, for example: '127.0.0.1:7777'.

This is because you are using ObjectNet transport, while steam only works with SteamTransport, make sure you switch the transport on the NetworkManager when using steam. see Network Transport