slickrcbd: I really hate this trend of calling demos anything but a demo. Labeling a "prologue" or "chapter 1" or "the beginning". Why can't they mark demos as demos?
I know Marketing is all about reinventing terms to mislead and trick people into hopefully buying, but it just annoys the crap out of me.
While some abuse the terms for marketing reasons, there are supposed to be significant differences between them.
A prologue for instance is a portion of the game, not disabled in any way and may not even be included in the final game and is perhaps a mini prequel.
Chapters are also portions of a game, and generally they are a more significant portion than a demo might be, and not disabled in any way.
Demos quite often don't let you save and may only let you play a very small part of the game. Of course some provide a demo that gives a lot more than other demos.
When I see Prologue or Chapter I am certainly expecting to get more than I would with a demo, and that what is provided should be fully working. If not the case then it is a demo in reality.
To further complicate things though, sometimes a demo is something that is cut or significantly changed from what eventually appears in a game ... an incomplete alternate version of the game. We have even had GOG remove those from our game library on occasion, and they become a sort of rarity.