I think that it can work pretty well to do that. My non-programmer brother is programming an asteroids clone with Armory because he gets to use Logic Nodes and avoid writing a programming language. There is also a very good pong clone showcased here on the forums. It has seemed pretty easy just to set the linear factor along one of the axes to zero to keep it constrained. I know it seems ironic, but it is just so nice to have a UI to build the scenes and nodes to do at least some of the logic if not all of it. 
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