In Ruins is a GM-less dungeon-building game for 1-6 players. Part collaborative story game, part tactical network-building game, players tell the story of a castle as it is built, falls into ruins, and is taken over by rival factions. In the ~2 hour game, players will create a dungeon, fully stocked with competing factions, hazards, monsters, and NPCs, that can then be explored with their fantasy TTRPG of choice.