Sci-fi and Space Games

Syfy Games
Has free online games based on your favorite SCI FI shows. Nothing to download, just click play and your all set!

Epoch Star Space and Sci-fi Games
Epoch Star has space, RPGs, and Sci-fi adventure games for the PC. Over 100 star systems to explore and conquer, hundreds of ships and thousands of weapons, and many exotic alien races.

Sci-fi-game.com Alien Invaders Attack
Battle aliens in Alien invaders attack. This site also has a free online asteroids game as well as other sci-fi games.

Arcade Bomb Online Sci-Fi Games
Play free online sci-fi flash games on your computer. Also has many other types of games (e.g., racing, adventure, strategy, action, ect.).

Starships!
Starships is a FREE multiplayer game about high adventure in space, where thousands and thousands of people share an online community. Join a fleet, mine for valuable and exotic materials, trade items, or explore unknown regions of space. As you progress, your starship will gain abilities and increase in power. Your weapons, shields, engines and other features of your starship will gradually improve, and your opponents will become increasingly more powerful. Be a starship Captain! Travel to different systems exploring, battling, negotiating, partying and plundering. We love our new players and are ready to have you join our community!

WarDrome Free Browser Game
WarDrome is a free strategic management browser game set in a space opera atmosphere. Real time combats, development, economy and role play.