Peaky Midwest is a writing workshop focused on creating Live Action Roleplaying Games. The event runs Friday evening to Sunday evening over a weekend. On Friday everyone discusses what games they're interested in creating and the writers form teams of three to five people. Over the remaining time on Friday and all of Saturday the members of each team work together to create a playable LARP. On Sunday all the games are playtested by attendees and the authors get their first feedback.
The workshop takes up many long hours and at the end of it you should have produced and playtested a small LARP. Teams generally revise their games further after the event on their own time.