I've tesetd the demo, and it coould tranform easily in real indie selling game, just by adding levels, some more gameplay meachnism or any addition like RPG system !
It could make some Metroid alternative game laugh

I've took a look at the code , i have some questions :
How is made the complete level ? it is not imported from WED ?

For entities that have code scritp attached to them, can we do that with C# ? or howw do we manage the entities with code and their attributes: values, AI state etc ... ?

Just do It !!

http://independentcreator.over-blog.com/pages/3D_Models-7792999.html