Clash N Slash
Enjoy non-stop action space shooter with extremely simple controls suitable for all ages! Clash'N Slash, a totally new and highly addictive arcade space shooter for players who want to enjoy a fresh exciting gameplay and bored with playing tons of indistinguishable shooter games. ... With superior firepower and enhanced spaceship capabilities that can be upgraded from time to time and ability to build structures on your homeplanet to aid in overall defence you can turn your alien shooting into pure unrefined fun.
http://www.enkord.com/download/clash_n_slash_111.exe - 5Mb - Download - Screenshot

Spacenoid
You have probably played other brick-breaker games before, but none like Spacenoid! It's a guarantee! With 100 levels, 20 different beautiful worlds, alien spaceships, black holes, gravity balls, more than 50 different bricks (they vary in shape and characteristics) and 21 powerups (some will... ) paddles at the same time, you can be sure you will never have a dull moment playing Spacenoid! ... Simple controls and non-violent game play that make sure the entire family can participate. ... ), and the choice to play with one, two, three or even four (!!
http://www.games2download.com/games/free-spacenoid.exe - 5Mb - Download - Screenshot

A.A.L. - Alien Eliminator
A. A. L. - Alien Eliminator is massive arcade action packed into 45 unique alien spaceships. Shoot whatever moves (or doesn't move for that matter) in 135 planetary systems in 15 empires. Pick up in-game powerups and earn hundreds of upgrade points to unlock better ships with stronger armor,... Uncover all the wisdom that is hidden on every planet, fight off wave after wave of alien aggressors, and adjust your strategy to dozens of attack formations and moving styles.
http://www.taipangames.com/AlienEliminatorSetup.exe - 9Mb - 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... Also avoid the Wardens, those pirates who try to racket you and steal your energy and your food or even try to disintegrate your spaceship. ... 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.
http://www.tlkgames.com/share/power_manga_share.exe - 7Mb - Download - Screenshot

Commando Xenidis
Commando Xenidis is a Top-Down Action Spacegame for one up to 4 players featuring different worlds, lots of spaceships and monsters, lots of extra-weapons etc. with missions in space and on the planets, After all planets of the system 'Xenidis' were terraformed in 2525 a. ... Commando Xenidis? ... was ordered to find out anything about the lost settlers and to prevent any possible danger from earth. ... In this game you are flying a high-tech battle-ship through orbit of each planet to beam on the surface where you will destroy all enemies with your special-trooper.
http://www.ericbehme.de/download/setup_cxshare.exe - 16Mb - Download - Screenshot

Arcade Park
In Arcade Ball the player's consciousness is bifurcate: one half turns into a small but very quick ball, and the other one - into an imperturbable platform which begins to order the light-minded ball about in every possible way and thrash it. Asteroids - everlasting cosmic confrontation between... A small interstellar reconnaissance spaceship not only gets in a thick ring of asteroids, but also faces aggressively inclined inhabitants there. ... Real Tanx. ... The Supreme Parliament of the Earth made a decision to deliver a preventive blow on the aliens' home planet.
http://www.herocraft.com/InstallArcadeParkWMDemo.exe - 2Mb - Download - Screenshot

Blockworks
Blockworks is the virtual construction toy for kids of all ages with an innovative concept. Hundreds of carefully drawn parts can be stacked and grouped in infinite ways, allowing endless building possibilities. This addictive, family-oriented pastime allows you to build houses, trucks, cranes,... - Models can be printed, exported as a bitmap and used as your desktop wallpaper. ... - Build and save as many models as you like, or modify one of the many included ones. ... - Eye-catching block animation with user-selectable ambient sounds.
http://produtizacao.com/blockworks/blw3setup.zip - 3Mb - Download - Screenshot