Best sci-fi games for free download

A sci-fi thriller that will take your breath away!

A sci-fi thriller that will take your breath away!

Your daughter’s uncanny gift draws the attention of a sinister organization!

Board the shuttle and embark on a space exploration adventure like no other in an exciting new time management game!

Board the shuttle and embark on a space exploration adventure like no other in an exciting new time management game!

Dr. Goodwin's miracle cure is once again under threat in this haunting hidden object adventure!

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.

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.

Venture beyond time and space in this classic adventure game that will take you out of this world!

Rally your army against the invading robots and experience the thrill of intergalactic warfare in this exciting new tower defense game!

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.

The fabled land of Agartha awaits your discovery in Esoterica: Hollow Earth! Experience a sci-fi adventure that will take you to the depths of the Earth.

As Sara tries to find a miracle cure for her ailing brother, she unravels the dark events of her own past.

Coloring book software filled with 50 pages of airplanes and other things that fly. Published by Dataware.

Two human factions are at war, and Rick’s best friend and girlfriend have been captured in the turmoil! Can Rick save Vanessa and Yuki before it’s too late?

Help! Aliens! is our new 3D action adventure game for your PC, laptop, notepad or netbook set on an alien spaceship. You are a secret agent sent to rescue the President from the invaders. Your mission is simple: Kill them all!!!

Massive Assault Network is a 3D strategy game based on original Secret Allies concept, where two rival sides struggle for global domination in sci-fi environment. Lead your divisions, fleets and air squadrons to crush your enemies with no mercy!

The GDN is a combination of fast paced shooter and rhythm action game with an intriguing sci-fi plot spread evenly throughout.

Supernova combines chess with shoot'em up. Choose your side: the evil Red Legion or the mystic Blue Army? Every side has 10 unique ships, each ship has up to 3 different types of fire for a total of 26 different weapons!

The game is a kill'em all arcade shooter with skins support and screensaver features. In this game you will act as a defender of an "energium" quarry. Using a plasma gun and rocket launcher you should destroy as many planes of your enemy as possible.