The Fifty Worlds scenarii will appear in due course (i.e. some time between tomorrow and the end of the world). In the mean time, make sure you have read the legal bit on my home page.
Also note that the scenarii, when they appear, will include adult human activities such as sex and violence and even political incorrectness. If you're too young to read about such things, read a good book instead. I'm sure you can find a politically-correct good book without any sex or violence somewhere.
Although the scenarii themselves may be a long time coming, I have started work on navigating between the worlds. Click here to start, or here to see the likely outcome.