Cassandra Calamity (also known as Mexx10) is the last map pack of Marcus Dromowicz (mexx), of early Quake fame. It is the second-largest mexx map, with two large, detailed base levels with a story, some new textures, skins and sounds, and custom cyborg enforcers, along with a few other additions. The author encouraged co-op play. The map was one-of-a-kind for its custom enemies and the presence of a story, as well as being a comparatively large map pack at its time (3420kb).