What are some good free sci fi horror stories to start with?

I would recommend 'The Last Question' by Isaac Asimov. It's a classic that explores deep concepts about the universe and the future of humanity in a relatively short space. Another great one is 'All You Zombies' by Robert A. Heinlein. It has a mind - bending time - travel plot. And 'A Martian Odyssey' by Stanley G. Weinbaum is also very good. It offers a fascinating look at what life on Mars might be like.

I would recommend 'The Time Machine' also by H.G. Wells. It's a short but very impactful story that explores time travel in an interesting way. It can be easily found for free. And then there's 'Flatland: A Romance of Many Dimensions' by Edwin A. Abbott. This unique story about different dimensions is both educational and fascinating.

Well, there are quite a few. For instance, many works of H.G. Wells are available for free in the public domain. 'The War of the Worlds' is a well - known one. It tells the story of a Martian invasion of Earth, which was very innovative at the time it was written. Also, some indie authors release their sci - fi stories for free on platforms like Wattpad. You can find all sorts of interesting concepts there, from space adventures to dystopian futures.

You could start with 'A Sound of Thunder' by Ray Bradbury. It shows the consequences of time travel in a very vivid way. 'Surface Tension' by James Blish is also a great choice. It tells a story about microscopic life forms and their struggle for survival, which is presented in a very sci - fi way.

One popular sci - fi horror story is 'Alien'. It features a terrifying extraterrestrial creature that hunts down the crew of a spaceship. Another is 'The Thing', where an alien entity can imitate any living being, creating paranoia among a group of Antarctic researchers. And 'Event Horizon' is also well - known. It tells of a spaceship that returns from a journey through a black hole, bringing with it unknown and horrifying forces.

Well, if you're looking for platforms to publish your sci fi horror short stories, you should consider 'The Dark Magazine'. It focuses on horror and dark fantasy, and might be a great fit for your work if it has a darker tone. Then there's 'Lightspeed Magazine' which has a section for science fiction and fantasy stories. It's quite reputable. Additionally, self - publishing on your own website can also be an option. You can promote it through social media and relevant online communities to attract readers.

One great sci - fi space horror novel is 'Alien: Out of the Shadows'. It effectively combines the horror of an unknown and deadly alien creature in the vastness of space. Another is 'The Cipher', which has elements of mind - bending horror set in a strange, other - worldly space - like environment. And 'Event Horizon' is also a good one, with its nightmarish vision of a lost spaceship and the terrors it holds.

Some good futuristic sci fi horror stories include 'Annihilation'. A group of women enter an area known as 'The Shimmer', where the laws of nature seem to be distorted. Strange mutations and a sense of impending doom pervade the story. 'Predestination' has elements of horror in its complex time - travel narrative. A time - traveling agent has to face disturbing events in different time periods that are all connected in a mind - bending way. Also, 'The Fly' (the 1986 version) is set in a semi - futuristic world. A scientist's experiment goes horribly wrong when he fuses with a fly during a teleportation experiment, leading to his grotesque transformation.

A good horror sci - fi short story is 'The Thing on the Doorstep' by H.P. Lovecraft. It involves strange body - swapping and a sense of dread that pervades the narrative. 'The Jaunt' by Stephen King is also worth mentioning. It has a simple yet horrifying concept of teleportation with a deadly side - effect. Then there's 'The Colour Out of Space' by Lovecraft again. This story features an otherworldly color that brings destruction and madness to a rural area, blurring the lines between science and the supernatural.

Well, 'Exhalation' by Ted Chiang is quite remarkable. It deals with thermodynamics and consciousness in a very engaging and scientific way. Also, 'The Things' by Peter Watts is a fascinating take on the Alien story from a more scientific perspective. It's a bit darker and really makes you think about the nature of the alien life form. There are also many great short stories in the anthology 'Lightspeed Presents: Women Destroy Science Fiction!', which features a diverse range of modern hard sci - fi stories by female authors.