Question Steamworks implementation launches Spacewar

I've tried implementing steamworks into a little unity game I'm making. My build works fine and I can host the game and so on, but when I try to invite my friend it launches spacewar on his end. How do I get my friend to join into my game instead of the spacewar lobby thing

 

Replace the Spacewar app ID (480) inside

steap_appid.txt

with your own.

 

If you're using steam_appid.txt, meaning your game isn't a part of the other player's steam library most likely, then I don't think Steam will know what to do when it tries to launch a game that it doesn't think is installed. You leave steam_appid.txt out of the content folder when you actually upload your build to your Steam depo or whatever it is called.

I think you actually need to upload your game to Steam, and download it through the regular Steam library download system, for you to test this. But maybe I'm misunderstanding what you're doing.

 

The reason why I came up with the .txt file is this: https://steamworks.github.io/faq/#steam-only-shows-me-playing-spacewar-how-do-i-change-it-to-my-game

No idea if you're using Steamworks.NET, but it also applies to if you're implementing the Steamworks API from scratch on your own.