End_user

Within the context of ENIGMA, "end user" can be an
ambiguous term. By definition, it means a person who uses a product. But
what is "the product" and where is "the end"?

The product could mean ENIGMA itself, and an end user is the immediate
user of the product (so a person using ENIGMA to develop a
game or program). But that's not the end of
production - then you have the Game or Program user.

The other case is that the end user is the person who plays the games or
uses the programs designed with ENIGMA.

Even beyond that, you could have a program developed in ENIGMA which
users can then use to, say, create a website, and then they will
themselves have users who use the website. The end-user here could be
three levels below ENIGMA, and soon enough it's turtles all the way
down.

Because of this ambiguity, try to be clear about which user and end-user
you are talking about. Even ENIGMA itself can have two end-user
license agreements (EULA) - one for the game
developer, and (as part of GPL) one that must be attached to the games
developed within ENIGMA (which is pretty much completely open - you will
always be able to license games developed within the official ENIGMA
under whatever license you choose, even closed
source and
proprietary).