Hey @BeHappy,
In addition to what @Leonidas posted already, I would like to mention the awesome Photon For PlayCanvas plugin created by @Ryotaro.TSUDA for the engine. This has really made it easier for my team and I to work on multiplayer projects in the past, and it’s often far faster than the Glitch servers as well. As an added bonus, since your project runs entirely on Photon’s cloud, very little server set up is required. I’d really encourage you to give this a try if you’d like to create easy to develop, yet fast and engaging multiplayer projects.
Hope this helped!