EV was (and, really, is) very much a mac game. Mac Versions Here!Mods
The genius of Escape Velocity was its mod potential. In addition to the TCs linked on the home page, there are numerous smaller mods ("plugins") which change improve or bypass gameplay. There's the official add-ons page and a remade version. There are plugins in the archive. All of these are in mac-plugin format, you'll need to use the conversion tool to run them on windows.
If you still need that top down space travel fix, there are some currently supported options:
FlashTrek and sequels