Force amplifiers (typically called force amps) are a type of mod that increases the amount of damage done by a portal when it attacks an enemy agent. Only rare force amps are currently available. Each force amp you install on a portal after the first is less effective:
| Mod 1 | Mod 2 | Mod 3 | Mod 4 | Damage Multiplier |
|---|---|---|---|---|
| ×1.000 | ||||
| Rare | ×2.000 | |||
| Rare | Rare | ×2.250 | ||
| Rare | Rare | Rare | ×2.375 | |
| Rare | Rare | Rare | Rare | ×2.500 |