A þing is a public assembly where free people gather for law, judgment, negotiation, announcements, alliances, and social business. It is one of the most useful Viking Age institutions for campaign play because it turns private conflict into public drama.
At the table, a þing gives players choices beyond combat. They can gather testimony, expose a lie, call witnesses, negotiate compensation, challenge a bully, win public trust, or accept a costly settlement to prevent bloodshed.