makesense95: ive been searching for a game like this on pc..i may try Parkan II
You might also check out the game Precursors. it's a Russian game that is apparently quite buggy but is also fairly awesome, and combines FPS gameplay on planets with some space sim flying and dogfighting.
The English language version is available from Gamersgate but apparently it's really crappy because they literally ripped out all the Russian voices, which makes the audio all messed up. Fortunately, Wesp5 has made a translation patch (which has grown to become a full-on unofficial patch) that will translate the Russian game. The Russian version can be purchased from Yuplay, but you need to actually use the Russian language version of the site so it's a little tricky. I managed to do it though, but I haven't gotten around to playing the game yet as I'm in the middle of some others and I'm waiting for improved translation patches. So I haven't played it firsthand but people seem to think the game is awesome, if you can work past the hassles in getting it running in English and can deal with some bugs.
Rock, Paper, Shotgun talk about the Gamersgate English version
here. The unofficial English patch is
here.
EDIT: If you check around some various forums, for example at SpaceSimCentral, there are many people who will be happy to help you figure out how to get the game running with proper sound.