That's right. I did download PT-109, but that's a game. The big problem is that, in contrast to flight simulators, a merchant ship simulator has practically zero entertainment value to most people. And software like that only comes as a part of a complete commercial simulator. And if one was made for the 68k platform it was probably for IRIX or Solaris.
II, II, SE, SE/30, IIcx, Portable, IIsi, IIsi, IIsi, LC, Classic, Classic II, Quadra 700, PB 100, PB 170, LC II, LC II, LC 475, PM 6100, Perf 6200, PM 7600, MP 2000, Perf 6400, PB G3, PM G5, MB.