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Free sci-fi game downloads by size reverse
Here you can find and download for free the best and largest sci-fi games, such as Project Xenoclone, Immortal Defense, Bookworm Adventures: Astounding Planet, Swarm Gold, Mr. Robot, and more.
Order the games by:
Sci-fi game 61 MB
Project Xenoclone (Strategy games)
September 7, 2006
Destroy thousands of merciless monsters as you try and uncover the secret of Project Xenoclone. It's one intensely unique 3D shooter experience! more…
September 7, 2006
Destroy thousands of merciless monsters as you try and uncover the secret of Project Xenoclone. It's one intensely unique 3D shooter experience! more…
Sci-fi game 39 MB
Immortal Defense (Strategy games)
January 6, 2009
Is there anything that you'd sacrifice everything to defend? Explore the boundaries of your imagination and strategic skills in Immortal Defense! more…
January 6, 2009
Is there anything that you'd sacrifice everything to defend? Explore the boundaries of your imagination and strategic skills in Immortal Defense! more…
Sci-fi game 28 MB
Bookworm Adventures: Astounding Planet (Word games)
December 3, 2009
Help Lex save the world from mutants and robots in this time-traveling, vocabularious adventure! It's up to Lex to set things right! more…
December 3, 2009
Help Lex save the world from mutants and robots in this time-traveling, vocabularious adventure! It's up to Lex to set things right! more…
Sci-fi game 26 MB
Swarm Gold
September 23, 2008
With its stunning graphics, intense sound effects and thrilling game play, Swarm Gold delivers fast-paced sci-fi destruction that takes no prisoners! more…
September 23, 2008
With its stunning graphics, intense sound effects and thrilling game play, Swarm Gold delivers fast-paced sci-fi destruction that takes no prisoners! more…
Sci-fi game 23 MB
Mr. Robot (Puzzle games)
July 11, 2007
Adventure through a massive 3D starship with platform-jumping puzzle-solving, sci-fi adventure, RPG style battle games and more! more…
July 11, 2007
Adventure through a massive 3D starship with platform-jumping puzzle-solving, sci-fi adventure, RPG style battle games and more! more…
Sci-fi game 14 MB
Darkside (Arcade games)
December 26, 2007
The Krainian Empire has invaded our outer territories! Hop into your ArkLight X-52 and take the fight back to the enemy, one battle at a time! more…
December 26, 2007
The Krainian Empire has invaded our outer territories! Hop into your ArkLight X-52 and take the fight back to the enemy, one battle at a time! more…
Sci-fi game 8 MB
Global Defense Network (Arcade games)
January 26, 2005
A combination of a fast paced shooter and rhythm action game superbly synchronized in a Sci-Fi plot. more…
January 26, 2005
A combination of a fast paced shooter and rhythm action game superbly synchronized in a Sci-Fi plot. more…
Sci-fi game 1 MB
Snack to the Future (Diner games)
June 30, 2008
The Flo Through Time storyline concludes in this sky-high futuristic fun-fest! Meet new customers, dress up like it's Sci-Fi Con, and train a Flobot as you help Flo and Grandma Florence find their way back through time. more…
June 30, 2008
The Flo Through Time storyline concludes in this sky-high futuristic fun-fest! Meet new customers, dress up like it's Sci-Fi Con, and train a Flobot as you help Flo and Grandma Florence find their way back through time. more…
All sci-fi games are free to download, you can try and play all sci-fi games listed for free.