Basic engineering costs

Weapon type:
Ranged – 30
Melee – 25

Damage costs
Plasma – 5
Magnetic – 5
Electric –15
Cold – 15
Radiation – 5
Laser – 10
Beam – 20
Small- 2
Heavy – 7
Explosive – 7
Sonic – 12

Class modifier
E x1
D x2
C x3
B x5
A x7

Armor

Kinetic
E – 0
D – 30
C – 40
B – 70
A – 110

Energy
E – 10
D – 30
C – 50
B – 90
A – 140

Resistant: 200% of engineering cost
Immune: 400% of engineering cost

Store item upgrades:
120% of zc cost in rc to upgrade by one letter class.