There are 5 types of damage in the game: Plasma, Laser, Kinetic, Missile, Railgun.
Ships with weapons of a certain type have advantages and weaknesses relative to ships with other types of damage.
Damage types interact as follows:
An arrow from one type of damage to another shows that the first type of damage takes precedence over the second.
Let's take Abaddon as an example:
It has a railgun type of damage and according to the diagram, it is vulnerable to plasma and laser damage. Accordingly, his Defense from Plasma and Laser is less than the others, less than his “average defense”.
And it also has an advantage over Rocket and Kinetic damage. Accordingly, his defense against them is above “average defense”.
Let's derive the ships themselves and their vulnerabilities from the diagram:
Javelin (Plasma) is vulnerable to Hornet (Laser) and Raptor (Kinetic), and has an advantage over Abaddon (Railgun) and Excalibur (Missile).
Abaddon (Railgun) is vulnerable to Javelin (Plasma) and Hornet (Laser), has an advantage over Excalibur (Missile) and Raptor (Kinetic).
Excalibur (Missile) is vulnerable to Abaddon (Railgun) and Javelin (Plasma), and has an advantage over Raptor (Kinetic) and Hornet (Laser).
Raptor (Kinetic) is vulnerable to Excalibur (Missile) and Abaddon (Railgun), and has an advantage over Hornet (Laser) and Javelin (Plasma).
Hornet (Laser) is vulnerable to Raptor (Kinetic) and Excalibur (Missile), and has an advantage over Javelin (Plasma) and Abaddon (Railgun).
Non-combat ships are naturally vulnerable to any combat ship. Valkyries are also vulnerable to them, especially considering the high cost of their construction - 5000 energy.