I have a tendency to start with some core element or elements of existing (possibly non-pyramid) games, and build from there. Sometimes, the result works; sometimes it doesn't. Recently, I saw a commercial game that is completely unrelated to any of my existing pyramid games, but which on brief reflection easily modifies into a variant of one of them. Or, it can stand as a pyramid game in its own right, with rules similar to the existing pyramid game. Which leads to the questions: (1) To what extent am I legally or ethically required to credit the existing game in making my game available (e.g., on the Icehousegames.org wiki)? (2) At what point does a game cease to be a "variant" of another, and become a game that rightfully stands on its own? (3) Alternatively to (2), when there are several variants, how do I decide which one should be the "base" game, of which the others are considered to be variants? (4) What is the best way to get the Looney Pyramids community to playtest my games and provide feedback? (This question applies to some games that have been "out there" for quite a while, not just to games I may come up with in the future.) (I should note that I posted this to the ning forums several days ago, and have received ZERO responses or suggestions. I find that to be slightly upsetting, suggestive that either my questions aren't worth responding to, or that it's personal about ME.)