It is a time of legend.

Mighty heroes battle for the right to rule the galaxy.

The vast armies of the Emperor of Earth have all but conquered the galaxy in a Great Crusade – the vast myriad of hostile alien races are being wiped from the face of history by the Emperor’s elite warriors.

The dawn of a new age of supremacy for humanity beckons. Gleaming citadels of marble and gold celebrate the many victories of the Emperor and his armies. Triumphs are raised on a million worlds to record the epic deeds of his most powerful and deadly warriors.

First and foremost amongst these are the Space Marines, super-heroic beings who have led the Emperor’s forces in victory after victory. They are unstoppable and magnificent, the pinnacle of the Emperor’s genetic experimentation. The Space Marines are the mightiest human warriors the galaxy has ever known, each capable of besting a hundred normal men or more in combat.

Organised into vast armies of tens of thousands called Legions, the Space Marines and their Legion Masters conquer the galaxy in the name of the Emperor, ushering in humanity’s ascendance.

But as in all things, the outcome is not yet assured, and in the shadows, dark forces align to thwart the Emperor’s dream.