Empires in this world exist in 3 different time periods. Interacting directly with an empire in another era requires an open Time Gate.
The offensive and defensive power of Military Units varies with one's era. Additionally, empires in different eras receive the following bonuses and penalties:
| Era | Industry | Energy | Exploration |
|---|---|---|---|
| Past | -5% | +20% | +0% |
| Present | +0% | +0% | +40% |
| Future | +15% | +0% | +80% |