The Steelworks is a heavy duty industry that produces Steel [[File:icon steel.png|16px|link=material]] using high temperatures generated by Coal [[File:icon coal.png|16px|link=material]] or Diesel [[File:icon diesel.png|16px|link=Material]], and combining Iron [[File:icon iron.png|16px|link=material]] from '''[[Foundry]] ''' with Sand [[File:icon sand.png|16px|link=material]] from '''[[Sand Quarry]]'''.

The basic Steelworks requires 1 Sand [[File:icon sand.png|16px|link=material]], 2 Coal [[File:icon coal.png|16px|link=material]] and 4 Iron [[File:icon iron.png|16px|link=material]] to generate 2 Steel [[File:icon steel.png|16px|link=material]] per '''[[Game tick]]'''. There are 3 extensions that can improve the production further or use Diesel [[File:icon diesel.png|16px|link=material]] as fuel instead of Coal [[File:icon coal.png|16px|link=material]].Fully upgraded Steelworks will produce 10 units of Steel [[File:icon steel.png|16px|link=material]], using up 2 Diesel [[File:icon diesel.png|16px|link=material]], 7 Coal [[File:icon coal.png|16px|link=material]], 20 Iron ingots [[File:icon iron.png|16px|link=material]] and 4 units of Sand [[File:icon sand.png|16px|link=material]] in the process each '''[[Game tick]]'''.<br/>Some of the buildings can be connected to the electrical network [[File:E_energy.png|16px|link=Electrification]] from [[Ages#EraV|'''Era 5''']] onward, which will further increase their production. The amount of electrification production bonus (if applicable) is shown in the brackets at each building.  The base process of the Steelworks is: {| class="wikitable transformable " style=text-align:center!Image!Name!Consumes!Produces![[Game_tick|Ticks]] to<br/>complete!Building<br/>dimension (tiles)|-| [[File:Steelworks.png|x120px]]| Steelworks| 1 [[File:icon sand.png|16px|link=Material]] 2 [[File:icon coal.png|16px|link=Material]], 4 [[File:icon iron.png|16px|link=Material]]| 2 [[File:icon steel.png|16px|link=Material]] + (1 [[File:icon steel.png|16px|link=Material]])[[File:E_energy.png|16px|link=Electrification]]| 1| Random shape <br/>(6 tiles total)|}

{| class="wikitabletransformable "style=text-align:center! ExtensionImage! InformationName!Cost! Consumes! Produces! No. of [[Game_tick|Ticks ]] to Complete<br/>complete! Building Tile Sizedimension<br/>(tiles)!Unlocked<br/>at epoch

| [[File:Steelworks_Protective_AtmosphereProtective_atmosphere.png|x120px]]| Protective Atmosphereatmosphere| 50 [[File:token iron.png|16px|link=Token]]| 1 Sand [[File:icon sand.png|16px|link=Material]], 2 Coal [[File:icon coal.png|16px|link=Material]], 4 Iron [[File:icon iron.png|16px|link=Material]],| 2 Steel [[File:icon steel.png|16px|link=Material]]| 1 Tick

| [[File:Steelworks_SiemensSiemens-Martin_FurnaceMartin_furnace.png|x120px]]| Siemens-Martin Furnacefurnace| 500 [[File:token timber.png|16px|link=Token]]| 1 Sand [[File:icon sand.png|16px|link=Material]], 3 Coal [[File:icon coal.png|16px|link=Material]], 6 Iron [[File:icon iron.png|16px|link=Material]],| 3 Steel [[File:icon steel.png|16px|link=Material]] + (1 [[File:icon steel.png|16px|link=Material]])[[File:E_energy.png|16px|link=Electrification]]| 1 Tick| 3x22x3| 2

| [[File:Steelworks_OxygenOxygen-Mazut_FurnaceMazut_furnace.png|x120px]]| Oxygen-Mazut Furnacefurnace| 1000 [[File:token money.png|16px|link=Token]]<br/>100 [[File:token iron.png|16px|link=Token]]| 1 Sand [[File:icon sand.png|16px|link=Material]], 2 Diesel [[File:icon diesel.png|16px|link=Material]], 6 Iron [[File:icon iron.png|16px|link=Material]],| 3 Steel [[File:icon steel.png|16px|link=Material]] + (1 [[File:icon steel.png|16px|link=Material]])[[File:E_energy.png|16px|link=Electrification]]| 1 Tick| 2x11x2| 2