EDS-1:Earth Defense Ship One
This is a quirky manga/japanimation inspired side scrolling shoot'em up game. An alien fleet is headed for earth, you are the earth's last hope. You are armed with a fast ship and powerful plasma rockets. You'll face an onslaught of enemy foes. The game includes: multiple alien ships to... We recommend this game. ... It's fun and challenging for the whole family.
http://www.garagedeveloperinternational.com/Releases/EDS1Demo.exe - 1000b - Download

Star Defender
Vertical scrolling space shooter. Advanced clone of Space Invaders.   You are a test pilot flying the Tornado. Your ship is controlled by your mouse. The ship is limited to movement in the lower line of the play area. To fire, press the left mouse button. ... Each type of ship has different weapons, attack style, and AI. ... When all power levels are depleted, your game is over. ... The different types of enemy ships attack in waves. ... The last wave of each level is the big boss. ... Each level consists of several waves.
http://www.awem.com/download/stardef.exe - 3Mb - Download - Screenshot

Pathfinder
Challenge your logical skills with space themed puzzle game Pathfinder. Guide your space fleet back to your home base. However, the journey is filled with dangers and obstacles. Encounter planets and space debris which block your way, comets which change the path of your ships, and even vortexes... However, players need not feel intimidated by the game's difficulty as the game has a gentle learning curve. ... Starting with simple puzzles with one ship and little obstacles, Pathfinder is slowly introducing new obstacles and different ships as players get more experienced in solving the...
http://www.mad-data.com/pathfinder/pathfindersetupdemo.exe - 3Mb - Download - Screenshot

Galactix
Pilot your way through the relentless Xidus Fleet in an attempt to save the earth from annihilation. Galactix is a space arcade type game where you pilot your ship to shoot enemy fighters and collect bonus's with your ships mechanical arm.
http://www.mking.com/download/galactix/galactixshr.exe - 3Mb - Download - Screenshot

Star Blaze
Star Blaze is a space shooter game, featuring amazing visual effects and high quality graphics. Crush your enemies in the depths of the space, deadly grounds, dark ocean waters and reach the core of the Retulla planet. Fight enemy hordes and mighty bosses. ... Collect resources and give your ship more firepower to annihilate the dark forces. ... See the ruins of lost civilizations, the beauty of the underwater and the horrible underground tunnels.
http://www.astonshell.com/files/starblaze.exe - 13Mb - Download - Screenshot

Space Quarry
Space Quarry is an asteroid blaster game for Windows 95-XP. Spin your ship around and blast passing space rocks with missiles before they collide with you. Each new round brings more rocks at an ever increasing pace to challenge your eye/hand coordination. ... Based on the video arcade game from the 70's but with better graphics and sound effects. ... 1 or 2 players, keyboard or joystick control.
http://www.briggsoft.com/download/sq95.exe - 684Kb - Download - Screenshot

CosmoBlocks
We all love games. That is the fact. Play activity is one of the major parts of human life. Computer is the infinite source of fun and entertainment as it allows making our imagination work for us at its best. Today, fast processors allow creation of extremely realistic game universes while... Enjoy the toughest brick game challenges as you race through space on a fusion powered hyper space ship! ... The game features advanced graphical engine that ensures you actually play bricks aboard of space ship blasting through the myriads of stars and not just dropping pieces into a cup.
http://www.energames.com/download/cosmoblocks.exe - 2Mb - Download - Screenshot

3D Space Station Adventure
Kids ages 5-12 love this new activity center learning and entertainment software from MVP. Design and build your own space station, landing module, and even your own rocket ship, and then watch it lift off into orbit. Then rescue the astronauts and blast asteroids in two exciting action-packed... Three fun learning activities and two games give you plenty to do as you learn about space travel and the international space station.
ftp://ftp.mvpsoft.com/pub/3dspace.exe - 15Mb - Download - Screenshot

Space Man
Space Man is an arcade style game where you try to complete each level before your lives run out. It provides entertainment. For those who enjoy a little more colorful description, please read on: Beware of out of control satellites while you race to save the Universe in this arcade style game. ... The fate of everything rests soley upon your shoulders as you struggle to collect all planet like deceptoids before your own ship is demolished.
http://www.mysoftwarefactory.net/software/SpaceManSetup.exe - 10Mb - Download - Screenshot

Power Manga
Power Manga, developed by TLK Games, belongs already to the legacy of the space adventure. It is one of the best Arcade Game developed under GNU General Public License. The present version for Windows is as neat as exciting. 42 levels, more than 200 sprites, some 14 guards that you must destroy... You have been selected to patrol a spatial ship of this unit and you are going to fly along the Milky Way in a fine spatial vessel. ... If by chance, you load energy to the limits of your spatial ship, you will explode a thermonuclear process that will return to ashes and dust any enemy.
http://www.tlkgames.com/share/power_manga_share.exe - 7Mb - Download - Screenshot