Armory is not mature enough.
Depending on your project scope, perhaps Armory is enough for you.
I don’t have a serious small game project, but i would use Godot instead (lot more faster at rendering , lot more usable , resources explorer, better object properties , better organized overall editor, lot lot better usability).
I would prefer Armory to have separate window, colors and it’s own tabs and organization in Blender.
Well … it’s preferences each of us have 
I’ll keep working on this game demo as Armory get new bug fixes, or new important features gets in.
For example navmesh fix and perhaps some prefabs system.