Horus as bright as the sun was explained by a tale, known as "The Contendings of Horus and Seth". In this tale, it was said that Set, the patron of Upper Egypt, and Horus, the patron of Lower Egypt, had battled for Egypt brutally, with neither side victorious, until eventually the gods sided with Horus. As Horus was the ultimate victor he became known as "ḥr.w wr" "Horus the Great", but more usually translated "Horus the Elder". In the struggle, Set had lost a testicle, and Horus's eye was gouged out. Horus represented the eclipsing binary Algol in the Calendar of
Horus Heresy (card game) final confrontation. The illustrations, annotations, and text provided new information on the Horus Heresy in general; the art joined previous work (in other Horus Heresy products) as the event's initial established imagery. Both art and story text were reproduced in later Games Workshop products. Following the sale of most Sabertooth Games assets by parent company Games Workshop in 2008, further development or sale of the game and related products was discontinued. A single game of the "Horus Heresy Base Set" features two commanders and their respective fleets and armies struggling over control of a planet. The attacker and defender fight