Oldest free HTML5tagged Sci-fi (7,005 results)
Explore HTML5 games tagged Sci-fi on itch.io. Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant plan · Upload your HTML5 games to itch.io to have them show up here.
New itch.io is now on YouTube!
Subscribe for game recommendations, clips, and more
Shoot your way through the planet of the evil, flying, space pigs.
Shooter
Play in browser
Solve mind-bending puzzles in this top-down Sokoban adventure!
Puzzle
Play in browser
2D Side scrolling platformer game with 27 unique artist-created levels.
Platformer
Play in browser
Sam lived among aliens for five years. Coming back home has been harder than he thought.
Interactive Fiction
Play in browser
Captain Rogers needs to fly through the dangerous sector of the space!
Action
Play in browser
It's not easy to quickly stand up from the toilet and shoot the incoming invaders!
Shooter
Play in browser
Take the helm as Giant Bomb's Commander Ryckert and "save" the galaxy one dan at a time!
Adventure
Play in browser
Sail on a Sea of Stars in an Ultra-Realistic Digitized World.
Action
Play in browser
Play as an operating system, trying your best to please your operator.
Play in browser
If you knew how you would die, would it change how you lived?
Adventure
Play in browser
A collection of short interactive fiction titles.
Adventure
Play in browser
Play in browser
A classic text adventure style game in a dystopian landscape where only robots survived.
Adventure
Play in browser
A story about an alien thief on the run, a dying world, and a family nearing the end.
Visual Novel
Play in browser
You are a scientist and your goal is to get people's energy to fulfill their purposes.
Platformer
Play in browser
Loading more games...