How many alien series 1 * *? What are the differences?

1. Alien I * * * has seven parts, namely Alien I, Alien II, Alien III, Alien IV, Alien Battlefield, Alien Battlefield Iron Warrior II, Alien: Contract.

2. Alien 1: The crew found that there was indeed a crashed spaceship here, but after some searching, they found that the crew of the ship had already died and turned into fossils. At this point, ripley, the third commander who stayed on the Nosmo, had deciphered that the signal was not a distress signal, but a warning signal! The life-and-death struggle of the players began.

3. Alien 2: Ripley was the only survivor after encountering an alien on the first expedition. She stayed in hibernation until she was rescued by the rescue team. When she opened her eyes, she found that she had been hibernating for 57 years.

4. Alien 3: After a long flight, Ripley's spaceship didn't fly back to Earth! There was an accident on the way back, and the low-temperature dormant cabin broke away from the main ship before the explosion of the mother ship and fell into a dark and cold planet. Apart from the surviving bishop, only Ripley is still alive.

5. Alien 4: In the quiet universe, a spaceship named Betty is flying to the planet Auriga. There are dozens of earthlings lying on the boat, frozen by anesthesia, who are completely unaware of the coming disaster. It turned out that unscrupulous military and businessmen abducted these people and sent them to Auriga to incubate the eggs laid by the alien queen 2 years ago.

6. Alien Battlefield: Iron-blooded warriors have stealth and thermal detection capabilities, and at the same time, their iron fists can pop out like "Wolverine" at any time. As his opponents, aliens not only have strong attack power, but also their blood and corpses contain strong corrosive acid, which is the bane of iron-blooded warriors' steel bodies.

7. Iron Warrior 2 in Alien Battlefield: A spaceship carrying iron warrior is flying away from the earth, which seems to symbolize that the unprovoked terrorist disaster is also moving away from human beings. However, the dead iron warrior suddenly burst his chest and an alien cub crawled out of his body strangely.

8. The timeline of Alien: Contract is set 1 years after the story of Prometheus ends. The spaceship "Contract" carrying immigrants encountered an accident in its voyage and landed on a distant planet. And found the survivor of Prometheus, the biochemical David, and there were terrible alien monsters waiting for them. This seemingly paradise planet is actually a doomed hell.