Night Raid and the Jaegers are prepared to battle each other to the death. But are either of them ready to stand against one of the galaxy's deadliest species? Their best hope lies with a group of survivors from beyond the stars. War is inevitable and death is certain. Courage and trust are their best weapons against the Xenomorph plague. Rated M for language, violence and gore.

In the daily life of living with monster girls, things are, well, almost normal, with life being a luxury with nothing to worry about. But when a monster that's not from this world escapes into our society, that normal life quickly fades away. While men armed to the teeth hunt down said monster, a man, and his female monster occupants will stumble right into its path.

An idea I had after reading another crossover (Herald of the Void). My first story so I hope you enjoy. What would it be like if Louise summoned a Queen as a familiar instead of a skinny kid? rated M for future content. cant have a few chestbursters without an M rating.

Jack thought the only problems he would have to deal with in the Zombie Apocalypse would be zombies and his feelings for Saeko Busujima. However, it turns out that his past has returned to kill him, his group of friends, and the rest of life on earth. Can Jack and his friends survive this Zombie and now Alien infested world...? (Re-written as Humans, Aliens and the DEAD)

After being born, Chris Alder and his family moved to a outer colony. After his life was destroyed by a xenomorph infestation, he was found by a detachment of Colonial Marines, and was adopted by one. Eventually, he joined the Corp and went on the mission to LV-426. After tricking the Queen into a Dropship, Chris flew through a wormhole. And now, a new terror descends onto Remnant.

What happens when xenomorphs start using superheroes as hosts?

NERV sends a group of personnel, including three human/xenomorph hybrids and two other children, to a silent spaceship. The mission: check for survivors and destroy xenomorphs. It may sound simple, but this is Evangelion and Alien we're dealing with. An AU Evangelion set in the Alien franchise. Rated M for language, gore, and lemons.

Michael, A Colonial Marine sent with Ripley to Investigate Hadley's Hope. When he is killed fighting he gets a second chance to prove himself just as Ripley did aboard the Nostromo...

Story one of "What things may come"What turns out to be another mission to stop Drakken in his latest plot to rule the world, is anything but. As Kim and Shego take on their greatest foes yet, which happened to be the two most feared species in the Galaxy

Commander Shepard is sent to investigate LV-426 after a Quarian ship was lost because of something they brought back from it. Alien/Mass Effect Crossover. Takes place after ME2.

You may be a man but you could still be with child, well alien baby…