Main building
Stores resources and tools; advancing to the next epoch happens here.
- Cost
- –
- Time
- –
Buildings
Stone Age
Library
Research happens here.
- Cost
- 50 wood, 30 stone, 20 clay
- Time
- 10 min
Workbench
Crafting of tools and bags happens here.
- Cost
- 20 wood, 10 stone
- Time
- 2 min
Storehouse
Holds 500 more (a quarter of it safe from robbers, half for supporters). Upgrade it to hold more; a base has up to three.
- Cost
- 60 wood, 60 stone
- Time
- 5 min
- Needs
- Storekeeping
Barracks
Citizens train here as soldiers with equipment from the storage; archers' arrows are made here.
- Cost
- 60 wood, 30 stone
- Time
- 15 min
- Needs
- Warfare
Wall
Defends the base: a bonus for the defenders behind it; upgrade it from palisade to stone to fortified.
- Cost
- 80 wood, 20 stone
- Time
- 20 min
- Needs
- Warfare
Defense tower
Two archers of the base shoot from it half as hard again, from the first round.
- Cost
- 40 wood, 40 stone
- Time
- 15 min
- Needs
- Warfare
Smokehouse
Smokes deer into meat: a meat feeds two (berries and a deer one), so the same deer feeds three times as many.
- Cost
- 40 wood, 20 stone
- Time
- 10 min
- Needs
- Hunting
Market
Sell and buy goods for coins: with merchants at fixed prices, or with players within its reach (1 km; upgrade it to reach farther and hold more).
- Cost
- 80 wood, 60 stone
- Time
- 20 min
- Needs
- Trade
Bronze Age
Smelter
Smelts copper and tin into bronze, also while you are away.
- Cost
- 80 wood, 60 stone, 30 clay
- Time
- 20 min
- Needs
- Bronze working
House
Room for 5 citizens; build as many as you like.
- Cost
- 60 wood, 40 stone, 30 clay
- Time
- 15 min
- Needs
- Settlement
Forge
Smelts iron ore with coal into iron in the Iron Age, also while you are away.
- Cost
- 80 wood, 80 stone, 10 bronze
- Time
- 30 min
- Needs
- Forging
Field
Grows 10 grain every 30 minutes by itself, also while you are away; build as many as you like.
- Cost
- 40 wood, 10 stone, 10 clay
- Time
- 10 min
- Needs
- Agriculture
Bakery
Bakes grain into bread: a bread feeds two, like meat.
- Cost
- 60 wood, 40 stone, 20 clay
- Time
- 15 min
- Needs
- Agriculture
Iron Age
Stable
Breeds horses from grain and berries, also while you are away.
- Cost
- 200 wood, 80 stone, 10 iron
- Time
- 1 h
- Needs
- Horse breeding
Armory
Repairs cost half as much and take half as long.
- Cost
- 150 wood, 150 stone, 30 iron
- Time
- 1 h
- Needs
- Armories
Antiquity
Mint
Strikes coins from silver ore and coal, also while you are away.
- Cost
- 80 marble, 150 stone, 20 iron
- Time
- 1 h
- Needs
- Coinage
Granary
The base holds 1500 more (a quarter of it safe from robbers, half for supporters).
- Cost
- 300 stone, 200 wood, 30 marble
- Time
- 2 h
- Needs
- Granaries
Aqueduct
Every house and block of flats has room for half as many citizens again.
- Cost
- 600 stone, 80 marble
- Time
- 3 h
- Needs
- Aqueducts
Forum
Free citizens pay half as much tax again.
- Cost
- 120 marble, 300 stone, 50 coins
- Time
- 3 h
- Needs
- Civics
Middle Ages
Mill
Grinds grain into flour: the bakery bakes more bread from it.
- Cost
- 250 wood, 150 stone, 40 coins
- Time
- 2 h
- Needs
- Milling
Charcoal kiln
Burns wood into charcoal for steel, also while you are away.
- Cost
- 150 stone, 100 clay, 100 wood
- Time
- 1 h
- Needs
- Steelmaking
Blast furnace
Makes steel from iron and charcoal: steel tools, swords and plate armor.
- Cost
- 400 stone, 150 clay, 40 iron
- Time
- 3 h
- Needs
- Steelmaking
Weaver
Weaves wool into cloth, also while you are away.
- Cost
- 200 wood, 100 stone, 10 iron
- Time
- 1 h
- Needs
- Wool
Monastery
Monks copy books: every research takes 20 % less time.
- Cost
- 60 gold ore, 20 gems, 150 marble, 300 stone
- Time
- 4 h
- Needs
- Monasticism
Renaissance
Printing press
Printed books: every research takes 25 % less time.
- Cost
- 400 wood, 40 steel, 30 cloth, 20 glass
- Time
- 4 h
- Needs
- Printing
University
Scholars research a second technology at the same time.
- Cost
- 400 marble, 600 stone, 200 coins, 60 glass
- Time
- 6 h
- Needs
- Universities
Glassworks
Melts sand into glass with charcoal, also while you are away.
- Cost
- 300 stone, 200 clay, 10 steel
- Time
- 2 h
- Needs
- Glassmaking
Bank
Stored coins earn 1 % a day (on up to 5000), and 500 coins are safe from plunder.
- Cost
- 300 marble, 400 stone, 40 glass, 200 coins
- Time
- 6 h
- Needs
- Banking
Powder mill
Grinds saltpeter and charcoal into gunpowder for arquebusiers and cannons, also while you are away.
- Cost
- 300 stone, 300 wood, 20 steel
- Time
- 3 h
- Needs
- Gunpowder
Industrial Age
Cement works
Burns limestone into concrete with coal, also while you are away.
- Cost
- 500 stone, 300 clay, 40 steel
- Time
- 4 h
- Needs
- Cement
Engine house
A steam engine drives the base's workshops: what they make takes half the time, for one more coal a piece.
- Cost
- 500 stone, 80 steel, 40 concrete
- Time
- 6 h
- Needs
- Steam power
Factory
Makes tools and weapons up to ten at a time, a fifth cheaper than the workbench.
- Cost
- 600 stone, 120 steel, 80 concrete, 40 glass
- Time
- 8 h
- Needs
- Factories
Tenement house
Room for 10 citizens; build as many as you like.
- Cost
- 300 stone, 200 wood, 60 concrete, 20 glass
- Time
- 2 h
- Needs
- Tenements
Electric Age
Refinery
Refines oil into fuel with coal, also while you are away.
- Cost
- 600 stone, 200 steel, 150 concrete
- Time
- 8 h
- Needs
- Refining
Power plant
Electricity drives the base's workshops: what they make takes a third of the time, for one more coal a piece.
- Cost
- 250 steel, 200 concrete, 60 glass
- Time
- 10 h
- Needs
- Electricity
Apartment block
Room for 20 citizens; build as many as you like.
- Cost
- 150 concrete, 60 steel, 40 glass
- Time
- 3 h
- Needs
- Apartments
Hospital
New citizens take half the time.
- Cost
- 200 concrete, 100 steel, 80 glass
- Time
- 8 h
- Needs
- Medicine
Fuel depot
The base holds 5000 more (a quarter of it safe from robbers, half for supporters).
- Cost
- 200 steel, 250 concrete
- Time
- 6 h
- Needs
- Fuel depots
Atomic Age
Enrichment plant
Enriches uranium into fuel rods with coal, also while you are away.
- Cost
- 500 steel, 400 concrete, 100 glass
- Time
- 12 h
- Needs
- Nuclear physics
Nuclear plant
Drives the base's workshops: what they make takes a fifth of the time, for one fuel rod an order (no coal).
- Cost
- 800 steel, 800 concrete, 50 electronics
- Time
- 20 h
- Needs
- Nuclear power
Electronics plant
Makes electronics of glass and steel, also while you are away.
- Cost
- 400 steel, 300 concrete, 150 glass
- Time
- 10 h
- Needs
- Electronics
Computer centre
One more research at the same time, and every research takes a quarter less time.
- Cost
- 300 steel, 300 concrete, 150 electronics
- Time
- 12 h
- Needs
- Computers
Radar station
You see 300 m around you, and every manned guard tower of yours brings aircraft down.
- Cost
- 300 steel, 200 concrete, 100 electronics
- Time
- 8 h
- Needs
- Radar
High-rise
Room for 40 citizens; build as many as you like.
- Cost
- 400 concrete, 200 steel, 100 glass
- Time
- 6 h
- Needs
- High-rises
Information Age
Chip fab
Makes microchips of electronics and rare earths, also while you are away.
- Cost
- 800 steel, 600 concrete, 200 electronics
- Time
- 16 h
- Needs
- Microprocessors
Data centre
One more research at the same time, and every research takes a quarter less time again.
- Cost
- 600 steel, 500 concrete, 150 microchips
- Time
- 16 h
- Needs
- Internet
Solar farm
Drives the base's workshops for nothing: what they make takes a quarter of the time, without coal or fuel rods.
- Cost
- 600 steel, 500 glass, 80 microchips
- Time
- 12 h
- Needs
- Renewables
Satellite uplink
You see 400 m around you and reach 80 m.
- Cost
- 500 steel, 300 concrete, 120 microchips
- Time
- 12 h
- Needs
- Satellites
Arcology
Room for 80 citizens; build as many as you like.
- Cost
- 1000 concrete, 500 steel, 300 glass
- Time
- 12 h
- Needs
- Arcologies