I am finishing my preparations for the Final Sanction scenario (you can see my post relating to that in the Gamemasters section) and I saw a couple of opportunities there (GMs will know which) to develop an idea that I had some months ago.
I wanted to create a deck of cards to simulate sewers, tunnels, getting lost in deep forest, etc. Then I saw and bought the "Chase Cards" deck sold by Paizo, and was inspired by the ideas there to create a deck.
The problem here is that I wanted to leave it as general as possible (because I want to use the decks in the games my friends and I run for Deathwatch, Warhammer 3rd, Pathfinder and D&D 4th).
I used Strange Eons to create the cards. You can find this incredible program here: cgjennings.ca/eons/index.html
So as to avoid clutter, I'll post the rules and links to my deck in a reply to this post.