abstract
| - You have to have every 10 levels of every tech to advance into the new era/age. For example: You need every tech to be at level 10 to be able to reach Iron Age. You cannot go past the level cap of the era, so remember to keep researching the techs you think you need right now. So before you enter Iron Age, you cannot go beyond tech level 10. You gain 1 science point per province (this can be upgraded by buildings).
* Bronze Era costs 10 science points and increases by 10 points by every level (Level 1 = 10 science points, Level 2 = 20 science points)
* Iron Era costs 100 science points and increases by 100 points by every level
* Antiquity Era costs 1000 science points and increases by 1000 points by every level
* Middle Ages and Renaissance Era costs 5000 science points and increases by 1000 points by every level
* Age of Discovery costs 10k science points and increases by 2000 points by every level
* Age of Imperialism costs 30k science points and increases by 2000 points by every level
* Industrial Era costs 50k science points and increases by 5000 points by every level
* Modern Age is the tech level 100, you cannot go beyond that
* 10x in Bronze-Iron era (1 science points per province in Bronze Era = 10 science points per province in Iron Era)
* 5x in Iron-Antiquity Era (10 science points per province in Iron Era = 50 science points per province in Antiquity Era)
* 5x in Antiquity-Middle Ages (50 points = 250 points)
* 2x in Middle Ages-Renaissance Era (250 = 500)
* 2x in Renaissance Era-Discovery (500 = 1000)
* 5x in Discovery-Imperialism (1000 = 5000)
* 0x in Industrial Era until the year 1850, then by 2x (5000 = 10k) Tech requirements for resources are (remember that wood can be gained from forests and horses can be gained from plains and grasslands, see climate map for these things)
* Wood, Bronze, Horses = Tech lvls 0
* Iron = Tech lvls 10
* Silver = Tech lvls 20
* Silver gives +2 gold per turn in the province that has silver
* Gold = Tech lvls 30
* Gold gives +3 gold per turn in the province that has gold
* Iron = Tech lvls 40
* Coal = Tech lvls 70
* Coal is needed for the factories in 1830-1920
* Oil, Natural gas = Tech lvls 80
* Aluminium, Uranium = Tech lvls 90
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