So, I want to run a game for my Skype Group set in Palladium's Phase World/Three Galaxies setting, but I don't want to use the Palladium system; I want to use Stars Without Number.
I've been thinking about how to do Mega-Damage in a D&D like system, and I have come to the following conclusion: Screw it.
This is how it works: Tech Levels.
Weapon and armor of the same Tech Level work normally against each other.
Weapons vs. armor of a higher TL- For every TL higher the armor is, the weapon inflicts half damage if it hits. A TL 2 weapon is going to do 1/4 damage vs. TL 4 armor.
Weapons vs. armor of a lower TL- For every TL below the weapon, the armor is treated as being one category lighter, or 2 AC worse if you're going by the book. So, TL 4 armor that grants AC 4 grants only AC 6 vs. TL 5 weapons. The worst an armor can provide is AC 9, the equivalent of unarmored, meaning that the weapon essentially blows straight through the armor.
Will it work? No idea, but I'm going to try it.