Building Classical Age
Library
Scrolls and scholars. Knowledge is needed to raise the wonders of later ages.
In your city
The Library unlocks in the Classical Age. With its workers in place it makes 18 knowledge per minute. It employs 3 workers. Its upkeep is 2.4 gold per minute; with an empty treasury it runs at half strength.
Upgrades
Once it is finished, tap it and choose Upgrade to raise it a level, up to level 3. You pay up front; the work then takes a while, shown by the same bar as construction, and the Library keeps working at its old level meanwhile. From level 2 it wears its level on a stone plaque carved with Roman numerals. How upgrades work.
| Level | Price | Makes per minute | Workers | Upkeep |
|---|---|---|---|---|
| 1 | Placing it | 18 knowledge per minute | 3 | 2.4 gold per minute |
| 2 | 45 wood90 stone90 gold | 31.5 knowledge per minute | 5 | 3.6 gold per minute |
| 3 | 75 wood150 stone150 gold | 46.8 knowledge per minute | 6 | 4.8 gold per minute |
Also in the Classical Age
Generated from the Erapolis game data, with pictures from the game itself. Numbers are per minute of game time, at Standard difficulty.





