Note that the cards work just as well in a standard rectangular grid, edge to edge. But there's much less variety available. Yes, I wrote the cards in PostScript. My intent was to get a huge pile of cards, and then mess around with them until I had a game. Pieces can move from a node to an adjacent node on the same card, or along a path to an adjacent card.
Symbols represent special powers available on the two cards that form the symbol.
There is a deck, but you draw two cards at a time, in order to place a cross on the board. And you have to stack them in the order they were in the deck, with the same faces upward. So you know one of the two faces available, but that's only half the information about what you're going to draw. So I never got my cards. As you might expect, I never came up with a game, either.