Some Classes of units have special bonus damage against or from other units. Additionally some units do reduced damage to different classes of units as a debuff. These values can be further modified by specific unit combos but that is on a unit by unit basis.
Units that have a value above 100% do additional damage, while units that have values under 100% will do reduced damage.
Ground units[]
Light Infantry[]
- 150% Damage to Heavy Infantry
- 200% Damage to Heavy Artillery
- 25% Damage to Heavy Mounted
- 25% Damage to Buildings
- 75% Damage to all naval units
Heavy Infantry (1 and 2)[]
- 90% Damage to Light Artillery
- 200% Damage to Light Mounted
- 150% Damage to Anti-Aircraft
- 75% Damage to all naval units
Light Artillery[]
- 120% Damage to Light Infantry
- 95% Damage to Heavy Artillery
- 95% Damage to Light Mounted
- 125% Damage to Heavy Mounted
- 125% Damage to Combat Buildings
- 75% Damage to all naval units
Heavy Artillery[]
- 50% Damage to Heavy and Light Infantry
- 85% Damage to Light Artillery
- 105% Damage to Light Mounted
- 110% Damage to Heavy Mounted
- 200% Damage to Buildings
- 200% Damage to Combat Buildings
- 75% Damage to all naval units
Light Mounted[]
- 150% Damage to Light Artillery
- 200% Damage to Anti-Aircraft
- 80% Damage to Heavy Artillery
- 150% Damage to Heavy Mounted
- 25% Damage to Buildings
- 75% Damage to all naval units
Heavy Mounted[]
- 250% Damage to Light Infantry
- 80% Damage to Heavy Artillery
- 75% Damage to all naval units
Citizen[]
No RPS Bonuses.
Priest[]
No RPS Bonuses.
Ram[]
- 200% Damage to Combat Buildings
Special Forces[]
- 50% Damage to Heavy Artillery.
HERC[]
- 200% Damage to Light & Heavy Infantry, Light & Heavy Mounted and Light & Heavy Artillery.
(In addition unlike most units, they do 100% damage to naval units - not the usual 75%)
Air units[]
Close Air Support[]
- 50% Damage to Light and Heavy Infantry
- 200% Damage to all naval units.
Air Superiority[]
- 50% Damage to all ground units.
- 50% Damage to all naval units.
- 200% Damage to all air units (except other Air superiority)
Bomber[]
- 50% Damage to Light and Heavy Infantry
- 200% Damage to all other ground units.
- 100% Damage to naval units. (no bonus/debuff)
- 200% Damage to Buildings
- 200% Damage to Combat Buildings
- 200% Damage to Coastal Defenses
- 200% Damage to Special Forces
Atomic Bomber[]
- 200% Damage to all other ground units.
- 100% Damage to naval units. (no bonus/debuff)
- 200% Damage to Buildings
- 200% Damage to Combat Buildings
- 200% Damage to Coastal Defenses
- 200% Damage to Special Forces
Helicopters[]
- 150% Damage to HERCs
Sea units[]
War Galley[]
- 200% Damage to Sea non combat
- 75% Damage to Coastal Defenses
- 150% Damage to Combat Buildings
Fighting Sails[]
- 200% Damage to Sea non combat
- 75% Damage to Coastal Defenses
- 150% Damage to Combat Buildings
Frigate[]
- 200% Damage to Sea non combat
- 75% Damage to Coastal Defenses
- 150% Damage to Combat Buildings
Galleon[]
- 175% Damage to Fighting Sails
- 200% Damage to Sea non combat
- 75% Damage to Coastal Defenses
- 150% Damage to Combat Buildings
Submarine[]
- 165% Damage to Battleships
- 220% Damage to Destroyers
- 200% Damage to Sea non combat
Battleship[]
- 125% Damage to Destroyer
- 200% Damage to Sea non combat
- 75% Damage to Coastal Defenses
- 150% Damage to Combat Buildings
- 20% Damage to all aircraft
- 35% Damage to Submarines
Destroyer[]
- 125% Damage to Battleship
- 200% Damage to Sea non combat
- 75% Damage to Coastal Defenses
- 150% Damage to Combat Buildings
- 20% Damage to all aircraft
- 165% Damage to Submarines
Buildings[]
Coastal Defenses[]
No RPS Bonuses.
Building Combat[]
- 75% Damage to Light Artillery.
- 50% Damage to Heavy Artillery.
- 50% Damage to Rams.
- 20% Damage to naval units
- 10% Damage to naval transports
Outposts[]
- 20% Damage to spies.