There's a new application game on Facebook called "PriestVille". It has received a lot of great reviews from the 800 or so members of Facebook who have installed and tried it out.
Here is their homepage:
*About PriestVille *
PriestVille is a game but also a tool for learning a bit about Catholicism and the life of a Priest.
This is an early Beta of the game, and so we appreciate any feedback or suggestions you have for improving it!.
*About SGR Games LLC *
PriestVille is the first product from SGR Games LLC.
SGR is named after Saint Genesius of Rome..
[Here's a link to an article on the life of St. Genesius: