We ask that all players wear at least one (1) article of clothing or prop which represents their characters to let others know when they are in play. This can be as simple as a baseball cap the character always wears, or as complex as full Elizabethan garb. Beyond the single item, costuming is entirely optional. That said, we feel that costuming is well worth the effort and enhances the immersion, suspension of disbelief, and quality of the event, so we endorse and encourage full costuming for anyone who wishes.
We do understand that not everyone has the time or inclination to develop elaborate costumes, and we have a strong NO COSTUME SHAMING policy. Put as much time and effort into your costuming as you will enjoy, and let others do the same.