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Best sci-fi games for free download by popularity
Here you can find the best sci-fi games available for free download. You can download any sci-fi game and try it for free to decide whether you like it or not. Some games provide 60 minutes of gameplay, others can limit you with a 30 or 15 day trial period. Some of the sci-fi games are free at all. Choose any sci-fi game you like and try it!
Order sci-fi games by:
arcade sci-fi game 119 MB, $6.99
Rally your army against the invading robots and experience the thrill of intergalactic warfare in this exciting new tower defense game!
arcade sci-fi game 149 MB, $6.99
In a sci-fi, high-flying Shooter game, you must use the enemy's own technology against them to save all of mankind.
arcade sci-fi game 696 MB, $6.99
As Sara tries to find a miracle cure for her ailing brother, she unravels the dark events of her own past.
arcade sci-fi game 20 MB, $6.99
Lifeline is a playable, branching story of survival against all odds! Help Taylor make life or death decisions, and face the consequences together. Or see what happens when you make a different choice.
arcade sci-fi game 125 MB, $6.99
Lead a team of specialists as they unravel the darkest secrets of the first decades of human space exploration in this graphical text based thriller.
arcade sci-fi game 181 MB, $6.99
Who am I is an immersive hidden object adventure of an epic scale! Take the role of an undercover agent investigating strange sci-fi incidents in the city.