Technology (Imperialism)

Technology in the now free game Imperialism takes the shape of various discoveries of the Industrial Revolution that become available at irregular intervals from fairly early in the game.
== List in approximate order of availability ==
Year 	Name 	SS 	Prerequisites	Effect
1815 	High Pressure Steam Engine	 	- 	Engineers can build railroads between tiles that contain desert, farm, forest, plain, or tundra; (swamps need to wait for the iron bridge)
1815 	Seed Drill 	 	- 	Farmers improve grain farms and orchards to level I
1816 	Cotton Gin 	1000	- 	Farmers improve cotton plantations to level I
1821 	Iron Railroad Bridge 	1500	- 	Swamp is now available for railroads though at a cost of $300; more importantly, the bridge enables Forester unit, who can improve hardwood forest to level I
1823 	Streamlined Hulls 	 	 	Clipper Ship - cheaper and with no armor but faster than Indiaman or Paddlewheeler
1824 	Feed Grasses 	1500	- 	Enables Rancher unit, who can improve wool farms and livestock ranches to level I
1825? 	Square-Set Timber 	 	- 	Miner upgrades mines to level II (4 units) at a cost of $1000 per time
1829 	Spinning Jenny 	3000	 	Farmer upgrades cotton plantation to level II. Rancher upgrades wool farm to level II.
1828-30	Paddlewheels 	3000	- 	Enables Paddlewheeler and Raider, (which still need lumber but use steel or arms, respectively, along with coal, instead of fabric)
1832 	Steel Plows 	3000	 	Farmers improve grain farms and orchards to level II
1837 	Bessemer Converter 	 	 	Build level 2 Forts; recruit Sharpshooters and Scouts, and convert Light infantry and Hussars to those units
1836 	Compound Steam Engine 	 	 	Engineer puts railroad through hills; Forester upgrades forest to level II
1844 	Rifled Artillery 	 	 	Recruit Field Artillery and Siege Artillery; upgrade older artillery to those units
1842 	Breech-Loading Rifles 	 	 	Recruit Rifle Infantry, Guards, and Carbine Cavalry and upgrade older units to those
1847 	Advanced Iron Working 	 	 	Ironclads
1846 	Power Loom 	 	 	Farmer improves Cotton and Rancher improves Wool to level III
1855 	Mechanical Reaper 	 	 	Farmer improves Grain farm to Level III
1860 	Commercial Fertilizer 	 	 	Farmer improves Orchard to level III
1858 	Oil Drilling 	 	 	Create Driller, produce Oil at level I, prospect for oil in desert and swamp, build Refinery and Power plant
1862 	Barbed Wire 	 	 	Rancher improves livestock ranch to level II
 
== External links ==
* Technology (Imperialism) on the Imperialism Game Wiki
Category:Imperialism