You should learn how to use a 3d editor in general and consider UE4 as the world builder.
Blender is a good option but might be a bit more than what you need so if you you want something simple as in you only need Wordpad and not Word this is an interesting product.
I took a quick look at it and has a real nice UI and work flow similar to Maya and tool selection is intuitive enough that one could figure it out easy enough.
Lacks FBX support but you can pipe to Daz Studio an export from there. Does export and import OBJ.
Overall would make for an excellent companion if your need is to make static mesh objects.
Oh forgot to add
Good price, does a lot of stuff game related, and comes with usable free content.