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This page shows how the Norse technology advances through the ages. The columns show the technology improvements and units each building is responsible for. Therefore, you can look for a unit, improvement, or building to see what it will enable you to build later in the game, to make decisions on whether or not those items are worth building at a particular point in the game.

Legend

--------------	Buildings
--------------	Units
--------------	Improvements
→	Item to the right requires item to the left
↓	Item below requires item above

Norse

Archaic Age	Town Center →	Ox Cart		House	Dock	Wooden Wall					Temple
	Gatherer	Husbandry			Fishing Ship	↓
	Ulfsark	Hunting Dogs				↓
	Dwarf	Hand Axe				↓
		Pickaxe				↓
Classical Age	Masons	Plow	Farm	Longhouse	Longboat	Stone Wall	Sentry Tower	Armory
	↓	Bow Saw		Ultsark	Transport Ship		Signal Fires	Copper Weapons
	↓	Shaft Mine		Throwing Axeman	Purse Seine		Watch Tower	Copper Mail
	↓			Raiding Cavalry	Enclosed Deck		Crenelations	Copper Shields
	↓			Hersir (Hero)			↓	↓
	↓			Medium Infantry			↓	↓
	↓			Medium Cavalry			↓	↓
	↓			↓			↓	↓
Heroic Age	Architects	Irrigation		Heavy Infantry	Drakkar		Carrier Pigeons	Bronze Weapons	Market	Hill Fort
	Fortified Town Center	Carpenters		Heavy Cavalry	Dragon Ship		Boiling Oil	Bronze Mail	Ox Caravan	Huskarl
		Quarry		Levy Longhouse	Salt Amphora			Bronze Shields	Ambassadors	Jarl
		↓		Archer Ship Cladding				↓	Tax Collectors	Portable Ram
		↓						↓		Draft Horses
		↓						↓		Heavy Infantry
		↓						↓		Levy Hill Fort
		↓						↓		Heavy Cavalry
		↓						↓		↓
Mythic Age		Flood Control		Champion Infantry	Reinforced Ram			Iron Weapons	Coinage	Ballista	Wonder
				Champion Cavalry	Naval Oxybeles			Iron Mail		Champion Infantry
				Conscript Longhouse	Conscript Sailors			Iron Shields		Champion Cavalry
								Burning Pitch		Engineers
										Conscript Hill Fort