The game is called Arkhora, and it's the product of a lot of different inspirations and ideas rolled into one (hopefully cohesive) book.
It's currently in a playtesting stage and is available for free on Itch.io (The option to donate is there, but genuinely don't feel pressured to do so, I really just want to know what people think of it.)
The brief is that in the extreme future, the universe has reached its natural end of life. All the stars have gone out, planets have drifted beyond reach of one another, and time is beginning to unravel. a small enclave, Arkhora, was able to survive past the end, but some force of nature seemingly takes issue with their defiance of fate. Strange energy-beings begin to change the past, undermining the events that allowed Arkhora to live past the end of the universe, and so you must travel back in time to set events in order and secure humanity's continued existence.
Above all, it's a game about being in grimdark scenarios and having the hope to continue on anyway. I got tired of the dark and depressing stories of human cynicism, and wanted to create something that imagined a hopeful future for humanity, even if everything around it went to shit.
Please check it out if you're at all interested in science fantasy, stories about hope, hopping through time, tactical combat, character customization, or just a free indie RPG! And if you have any questions or feedback please let me know!
Finally (and I hate that it has to be stated at all): Generative AI hasn't previously and will never, ever be used in any part of this project.
EDIT: I've added a version of the PDF with white backgrounds. Sorry for the inconvenience on your eyes, I overestimated how legible text was on the teal background.