Zealous Worship is an upgrade from the Harmony Tree, ceremonies extolling the virtue of the Unity are made more compelling, increases the rate at which your empire spreads culture.
| Upgrade Level | Upgrade Time | Shield Mitigation |
Culture Spread Rate |
Cost (Credits/Metal/Crystal) |
|---|---|---|---|---|
| 1 | 47 | 1% | +5% | 600/50/100 |
| 2 | 53 | 2% | +10% |
700/75/125 |