SpaceSimCentral

I am not sure. It was a long time ago. The game you suggested resembles it. It was a arena versus game with newtonian physics.

<t>Found an old forum post which describes the game in more detail. Unfortunately, he is also looking for the name of the game "Basically you chose a ship (or customized one) and duked it out with another player (hotseat). The ship customization was "here's a graphic, here's three dozen mount points ...

it was a PC

I don`t think that's the one (looks cool though). I remember that you would fight within the screen (no scrolling). You were able to purchase better thrusters and shields. You could also get mines and turrets.

<t>I remember it as a 2d top down game. You could play against the ai or a friend. There was only a few ships to choose from and the goal was to destroy the opponent. You could buy better ships, shields and projectiles. Some projectiles would follow your opponent while other would fall towards the ...