Glass Works
The Glass Works increase your glass production in the "Fire Peaks" kingdom (up to +50% when maxed). You may build levels 1-3 with wood & stone, while the last two levels cost rubies.
| Level | Rubies cost | Glass production bonus |
|---|---|---|
| 1 | 31,616 wood & 36,843 stone | +10% |
| 2 | 0 | +20% |
| 3 | 0 | +30% |
| 4 | 11,000 | +40% |
| 5 | 23,000 | +50% |
| Total | 34,000 |
