Wall of Faith is an upgrade in the Harmony Tree, makes your empires culture more resistant to being pushed back by that of another empire.
| Upgrade Level | Upgrade Time | Culture Resistance | Cost (Credits/Metal/Crystal) |
|---|---|---|---|
| 1 | 173 | 20% | 1200/200/325 |
| 2 | 196 | 40% |
1300/225/350 |