Here's my personally idea. First off, it would work best for my idea if it was top to bottom. Also, this would require a fair bit of coding. What I'm thinking is you first off take an image that just shows the Quest at top, and then all the prerequisites below it. So for Legends Quest, it would have Legends Quest in the box at top, and then lines to the boxes containing Hero's Quest, Family Crest, Shilo Village, Underground Pass, and Waterfall Quest. You could then click on each of these individually to extend the prerequisites from that quest down. So you would have like this: You could then click on each individual box and make it show the prerequisites for that. For example, when you click underground pass, it would look like this. You could do this pretty much all the way down the line. This way, you don't have to show the entire thing, when some people might only need to do Waterfall quest, and the prerequisites for that. Sorry for the bad images, I didn't feel like spending a lot of time making an example. I'm not really that bad with making images :P