On the other side Blender requirements are very low, it's a modelling program with an integrated game engine and there are a lot of books and documentation available. The downside is that the interface is a mess with coommands, icons , toolbars all over the place and as far as i know there aren't any games created with it.
Blender is a modelling program, you should expect it to be a modelling program first and a game engine second. All of those "coommands, icons , toolbars all over the place" are generally for the modelling aspect, and once you get to know them a bit, they are all useful.
The only game I know of that was created with it was created by a mass collection of people for the game Yo Frankie. There are also a number of video tutorials they released about developing for this type of game, which you should probably google if you want to use Blender.
...Just keep in mind, it's definitely not going to be an easy ride.