[_r.u.s.s.] Gazillionaire
 

I have no idea what the games name is(been at least 10 years since I played it as a child), but I remember you had to select/buy a ship, and the game had something to do with taking people to planets(like taking them on a tour) you could buy things for your ship, more passenger space, seating, random upgrades, I think the source of income was taking people places, but alas it's been so long my memory is faint. If I remember correctly, one of the ships you could get at the start of the game, had a color scheme like that of a wasp(all the ships were weird and alien looking), it was a fairly underground game, and if needed I could post more information about it.

i think it can be gazzilionaire deluxe (or maybe just gazzilionaire, but i have played only deluxe version and description fits)

Yeah, I thought of Gazillionaire too. I'm not sure I remember anything about passengers though, it was an intergalactic business sim.

I think it was this game, or one similiar, thanks for the help. Is this game still being sold?

Surprisingly enough, after all these years it's still for sale, unfortunately. However, there is a shareware version here. You can also purchase the full version at that same page.