Dunk is a Play-By-eMail game. This means that you send in orders via email (or webforms because mailing Dunk don't work right now...) and get reports at some predefined time, for example once a week.
In Dunk you rule a fantasy kingdom and you have to develop its economy, technology and military to survive the history.
You can now apply to new Dunk-campaigns (It is free). Please note that Dunk is still not very well game-tested so you have to send me bug-reports sometimes. The first Dunk-campaign started 1996.