I was going to look into UNITY3D, UNREAL Engine. But I think this one is likely easier and more motivating: https://hiberworld.com/
You can publish it at Hiberworld or at your own site and there apparently are plenty of "artists" using it already, I've tested a couple sample site, not bad, even features multiple players and chatting ability. My intention for this sort has always been educational: i.e. 3D tour of museum, arts, or motivational biblical game, etc.
