Don't get me wrong, I don't think it's a bad idea. The Interactive Fiction (Zork and all the Infocom games) and MUD niches are very well established, so we want to carve our own niche -- the easy creation of games.
One thing I have been starting to think about is a Battle Engine. I've got only high level thoughts on it, but, here's what I got ...
- Battles would be a Module of a game (like Items, Variables, etc).
- The net effect of a battle would be a change in variables and items, and going to another page
- I am not sure how the actual battle would work yet
- A Battle would be a Link Destination Type (currently, you can go to Pages, Chapters, End Game, Reset, etc)