I think the expert is right. I use 3Dgs to work with programmers so for my own game I've to play around with template or stuff. most of the 3d artists want somethink like Game Logic (crystal space) or logic brick ( blender game engine) maybe if you want something affordable and powerfull why don't you try to make something similar with lite-c, or maybe ogre or irrilicht. Look Crisis engine 2 is already with sort or logic brick, unreal engine 3 also could be used without programming. I think if you manage to succeed in making this ( I don't know if it's legal or something) many people would be thanksfull for this. Because A6 is a really good engine and even if it's lack of features I think if we could focus on the main problem for a game making the quality will increase.

friendly frank is also right, I don't know if neoaxis is an engine or a wrapper ( I don't really understand the diference ) but they call it engine.