What other worlds do you have?

[ATMLVE]

I've had a sci fi world in my head for a long time now. I focus on particular events and stories in this world. Its a parallel-ish universe to ours; a bunch of humans developed on an earth-like planet. However, my main focus of the stories is a logical plotline, no aliens, and cool stories. In my head, I imagine each story as a movie. So far they've colonized several systems and met various misfortunes. It is present entirely in my head, but I think about it a lot.