I know it's a little late (understatement of the age) but the simulator has been updated for Age 15
Please post here about any discrepencies between the simulator and the real game.
Among the things fixed:
1. Race bonuses and penalties.
2. Bonus 5 acres per day.
3. Building effects.
4. Networth calculation.
5. Guilds wizard production effect.
6. Prisoners on main screen.
7. Unit offense/defense values.
Things that are not working due to lack of data:
1. Exploration cost formulas (both soldiers and gc).
2. Start of age birth rate formula (it's supposed to start low and increase up to the nominal value after a day or two).
3. Science formula is close to the real game, but still a little off.
Thank you for your patience.