DemiCon is an annual volunteer-run science fiction, fantasy, and gaming convention held in Des Moines, Iowa, in late April/early May.
[1] DemiCon was founded in 1990 by fans who learned the trade from the likes of Joe Haldeman and graduates of his University of Iowa Writers' Workshop.
These fans had formed the Des Moines Science Fiction Society in 1989, and at their first meeting, included a convention among their goals.
DemiCon is a family-friendly event, and offers a wide range of activities with appeal across generations of sci-fi and fantasy fans.
The following table lists the annual themes, and the guests that have honored DemiCon since the event was founded.