Offensive Boost

(data current as of 2026-05-23, game version 2.12.7)
About this skill
Offensive Power is an alliance skill that sharpens the weapons: it strengthens the attack of members’ fleets and defence. Every volley hits harder, and battles end faster and in your favour.
The skill is shared and funded from the alliance’s common treasury. The higher the level, the heavier your fist — a direct combat boost for an aggressive alliance.
What the skill gives
Alliance skills are upgraded with shared points and apply to all members.
Bonus by level
| Level | Attack |
|---|---|
| 1 | +1.5% |
| 5 | +7.5% |
| 9 | +13.5% |
| 13 | +19.5% |
| 17 | +25.5% |
| 21 | +31.5% |
| 25 | +37.5% |
| 29 | +43.5% |
| 30 | +45% |
Upgrade cost
The skill is upgraded from the shared alliance storage; the cost grows with level. Below is the total cost up to the selected level (with one skill per branch; each extra skill in the same branch multiplies the cost).

