New & popular free HTML5tagged Sci-fi (5,928 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.
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Lead your spacefaring empire to victory through strategy, technology, and tactical supremacy in a fast-paced 4X game.
Strategy
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Our Game Jam Entry for Brackey's 2025.1 titled Trouble With Tetras.
Simulation
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Escape the chaos. Master the portal. Find your way home.
Shooter
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Edgar is a ghost hunter hired to investigate an old house haunted. What secrets will he uncover?
Card Game
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A short game of finding a creature within a space cargo ship. Find it, and eject it!!
Strategy
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Escape your containment chamber and wreak havoc upon your mech overlords!
Action
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Navigate ever-changing traps and platforms to uncover the secrets of a forgotten civilization
Platformer
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Tank-Busting, UFO-Charging, Clicker Game (FULL SCREEN IS BEST)
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A short 1-bit horror psychological game featuring deep audio immersion
Adventure
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