We do not currently have a web-based interface. In the meantime you can play on paper. To play, select the Rogo you want to try from the list on the left. Then print the page, find a pencil and get solving.
If you are unfamiliar with Rogo, you may find the instructions helpful.
If you're looking for a Rogo App, and have an iPad, iPhone of iPod Touch, check out our iOS Rogo App.