As is the common theme in the franchise, the Xenomorphs can not be controlled and have become a hated enemy of the Engineers. Here is an overview of the different clashes between Xenomorphs and Engineers, some happening even thousands of years ago.
Space Jockey Lore
Space Jockey lore explanations and theories, overview of different Engineers and their ships from the movies and the Expanded Universe.
The Space Jockeys fly around in gigantic ships, containing a deadly payload of bioweapons. These ships often crash, ready to be discovered by helpless explorers. While most of these ships look like a horse-shoe, some also come with more exotic designs.
Predators hunting and fighting a Space Jockey is a rare event in the Alien vs. Predator franchise. It is a great honor and privilege for the Predators to claim a trophy of an Engineer as they are an elusive species but also extremely tough in combat. This is a list of all known Predator and Space Jockey encounters.
The Space Jockeys are the mysterious pilot species first seen in the first Alien movie. Throughout the series, there have been many iterations of them, including the Engineers from Prometheus and the Mala'kak pilots from the Alien books and comics. Here is a list of the different individual Space Jockeys, ranked by their accomplishments.
The Aliens have invaded Earth several times during its history in the Alien vs Predator franchise. Here are listed 5 Earth invasions. The list is sorted chronologically and some of these events have been deemed non-canon.