I tried PlayCanvas and added some things to its demonstration, it was an interestng experment. Using the Javascript language was a tad unexpected but at least it’s well known.
It is great for teams and the fact that it is open-source makes me think that it had something to do with Godot but it has no multiplayer built-in, thankfully there is a plugin for it.
You can Play it here
or check my profile at Playcanvas itself.
I find it funny how the Editor only works on Chromium but playing it is faster on th3e Firefox browser.