Zigfrak embraces the physicality of the third dimension. Every ship, missile, and bullet is a simulated physical body, and most damage is derived from collisions.
Balanced for Gameplay
We do bend physical rules where it makes sense, for the sake of gameplay. There's a little bit of drag to keep the simulation from running haywire, and other niceties such as physical prediction. Turns out, computers are better than humans when it comes to hitting an accelerating target from an accelerating platform with an accelerating projectile.
What else to expect?