GATO was my first naval simulation.
On an amstrad pc 1512 with CGA color monitor nontheless, if you could call that a color monitor. :p
After that I'm afraid to say that there was the desert, I was much more interested in avalon hill board games than computer games. And so fast forward to 2005 when I bough my second naval computer game Dangerous Waters. After that I waited for SCS naval combat pack so back to Sub Command, Fleet Command and 688i Hunter Killer. After that I bought s second hand 100% perfect SH I edition and that fired again my interest towards WWII naval engagements so I bought also SH 3.
Thats not bad at all for someone who has always considered flight simulations THE GAMES for pc.