Flatspace II
Flatspace is a modern 3D space trading and flight simulation. The ultimate objective in the game is to locate and assemble parts of a galactic hyperdrive, however there is a lot of freedom for the player and as a space captain, you can decide what you want to do and how you want to play. ... To make a profit you could opt to trade cargo between eerie space stations, or become a space pirate and steal cargo. ... As a space captain you can fly any of over a hundred ships in the Flatspace universe, providing you can afford the price tag.
http://www.cornutopia.co.uk/software/flatspaceiisetup.exe - 12Mb - Download - Screenshot

Beta Blocker
Based on the classic gameplay of Escape Velocity and other foundations such as Elite and Freelancer, Beta Blocker is a combination of great gameplay and classic features. Beta Blocker is played out in an expansive universe, even at this testing phase, that is open to curious explorers. ... You choose your own role, be it a benelovent policeman or a selfish space pirate. ... Take up missions, bounty or freight, purchase new powerful weapons and items, earn money through wage or stealing, capture ships or save them, it's your choice.
http://betablocker.budfish.com/betablocker.zip.html - 13Mb - Download - Screenshot

Starships Unlimited
Starting with one starship, explore the galaxy, uncover ancient alien artifacts and fight pirates as you expand your empire. In this game, starships are the heroes! Watch detailed space combat take place before your eyes. Research over 200 technologies from 4 ages. ... Use it to keep track of others or to steal some of their technology. ... Only one civilization can rule the galaxy. ... Build up a spy network. ... Will it be yours? ... Keep your worlds and starships up-to-date with your latest technologies.
http://www.apezone.com/install/stundemo.exe - 3Mb - Download - Screenshot