Its not that you use an engine. Publishers rather have
a small developer use an engine, that is proven to work/compatable, than some homebrew hacker
with his own 3D engine, where the game is only showcased on a few computers.

Is simply that when you go to a publisher and say you made a demo with the FPS-Maker
you will not be taken serious.

And "3D Gamestudio" simply transports the same impression simply by its "gamemaker" name.


-> the publisher simply does not know how much of the Demo is "static" functionalities provided by the engine,

and how much is really due to the skill of the programmer/developer.
And this determines (for the publisher) how flexible the developer is expected to be in the future,
when new features are needed.
If you make a game wich looks exacly like one of the many template shooters here, but you say
that this is completely developed by you in C++ and Direct X, you will be much more trusted
to have the skill to make a bigger project.


When I showed people my RTS, they thought, that this can be simply clicked together with
Gamestudio, wich is far from thrue. But the game-maker name simply transports that impression.


-> its really about the name "3D Gamestudio", not that its position as Middleware engine.