I recently found the Rogue Engine which is like a Unity3D editor but for ThreeJS games. It's awesome! But a little early, so I'm still doing a lot of coding by hand. My favorite!
I wanted to recreate my spaceloop1 project but using 3d assets from Kenney, and this seems like the perfect way to do that.
So far I've been able to easily load some gltf assets, add the CannonPhysics properties to them, and even make a nice HTML-based UI.
It's pretty powerful; I can click into an object and adjust it's properties on the fly.
It's still super early gameplay-wise, but I can easily see the potential here.
Once I finish out the UI, I'll work on attaching it to my bubble-socket service to enable multiplayer. Being able to fly around and bump into other players is my MVP!