8-player co-op strategy/RPG set on Mars during The Red Solstice In The Red Solstice you control one of the eight space marines that are trying to find out what happened to human colonies on Mars during the huge storm called The Red Solstice. The mix of a dark and gritty Science Fiction setting and addictive adrenaline filled gameplay - based on advanced tactics and quick decisions at the same time - makes for a great atmosphere and gameplay experience.