something fun to do my first one also

Vampires and Robots that run on human blood fight over the limited human blood supply in an epic war of the supernatural versus the machines.

or
A seemingly ordinary horse is visited by a mystical presence that promises to make her a unicorn, but she must face the dangers of escaping her stable if she wants access to this new and mysterious world.

or

A spaceship that can surpass the speed of light allows some humans to escape our solar system with its dying sun. How will humanity decide who gets to be a passenger?

or
A special computer virus is engineered by a rogue Apple employee to control human desires and impulses.

or
A pet store with an overflow of cats sells them at a very low price. However, what seemed to be normal kittens were actually the offspring of an alien that can body jump from human host to human host, causing each of their hosts to commit suicide after 24 hours.

or possibly a game where you try to escape 100 floors

or maybe a two player story or multiplayer 

THOSE ARE ALL mY IDEAS I HAVE IN MY JOURNAL SO HOPEFULLY YOU CAN GET A MULTIPLAYER STORY THAT WOULD BE COOL