I don't really have much information regarding this but just from software, you can't create a real game, you need to know some kind of programming. You can also try some open source game engine, they have tutorial and if you study them for a few months, you can create your own game.
OGRE is very famous one :
Since 2001, OGRE has grown to become one of the most popular open-source graphics rendering engines, and has been used in a large number of production projects, in such diverse areas as games, simulators, educational software, interactive art, scientific visualisation, and others. You can read what other people have said about it, and it's free, so why not try it out?