War of the Red Moon
This game is set in the world of Glorantha, a magical world and not a planet floating in space. Its universe obeys other laws than those of terrestrial physics. The Inner World, the world of mortals, is shaped like a huge cube of earth floating in a limitless sea of water. Two major continents, Genertela and Pamaltela, and a myriad of minor islands rise above the surface of the infinite sea.The Sky World lies beyond the dome of the sky. At night, the stars show where the magical denizens of the Sky World peep through the Sky Dome to guard their followers below. Similarly, the Underworld is populated by immortal creatures, as well as by evil dreams and by the souls of the dead and unborn.
The Sun rises from the east each morning, then passes over the air, and across the sky to set each evening in the west. It then travels beneath the seas and the earth through the Underworld, and finally again up to the eastern lands of the dawn. The world is populated by magical entities who personify fundamental powers and cosmic truths, spirits of diverse origin, power and benevolence, and feared manifestations of Chaos (foul-seeming and otherwise). Many of these beings are alive in every sense, but many are not. Most people live only in the mundane world, content to let priests, shamans, and wizards protect them. But the influence of the magical world is always there.
The Land of Delos
Your characters are all people living in the land of Delos, a country of fertile, coastal plains and verdant forests. Delos is bordered by the Shining Plains to the west, a massive sea of grassland that is home to wandering barbarian nomads known as the Orlanthi. To the north lies a great mountain range, and beyond that is a frigid land known as the Troll Wastes, populated by fierce trolls poorly suited for human habitation. To the east lies another mountain range with only a single pass, and beyond that the powerful and sophisticated Lunar Empire, considered by many to be the most powerful nation in the world. To the south lies a great sea and numerous islands.
The people of Delos are a bronze-age culture dominated by agriculture, centered around seven city-states. Most Delosians consider themselves to be part of one city-state or another. The city-states are sometimes friends, sometimes rivals, and have occasional minor wars between one another, but at the end of the day they share a common culture and similar values. The people of Delos worship a pantheon of five gods, but sometimes propitiate gods outside this pantheon if they feel it is necessary.
Your characters are all members of the Senate, the ruling body of the city-state of Astra. The people of Delos are menaced by the threat of war with the Lunar Empire to the east, the most powerful country in Glorantha. You must unite the people of Delos against them, or your people will lose their freedom forever as thralls of the blasphemous Lunars.