The direct current (DC) engine is the simplest to make and operate. All it requires to function is a continuous redstone signal of any strength. This ease comes at a cost, though - these engines are the weakest of all, outputting %d Nm of torque at %d rad/s for %.3fkW of power.

The wind turbine uses wind to generate rotational power. Due to the low density of air, it does not generate much torque (only %d Nm), but its design allows it to rotate at the rather rapid speed of %d rad/s, producing a total of %.3fkW at max efficiency. Note that the efficiency of this engine is only maximized when it is high up and out in the open. Objects and blocks can obstruct the blades of this engine.

The steam engine operates continuously if given a source of heat (fire or lava) below it and water on any other side. Slightly stronger than the previous engines, they provide %d Nm at %d rad/s (%.3fkW).

The gasoline engine, true to its name, runs on...ethanol. Simply load in ethanol crystals and watch them burn to produce %d Nm of torque at %d rad/s, or %.3fkW of power.

The alternating current (AC) engine, like its DC cousin, requires a redstone signal to perform. However, this one needs an alternating signal, best supplied with a redstone clock. Faster cycle times correlate to more consistent power output, with 2-clocks providing a constant supply of %d Nm at %d rad/s (%.3fkW). This engine requires a magnetized shaft core, which it will gradually de-magnetize.

The performance engine, like the gasoline engine, runs on ethanol, but it also requires water coolant and can only reach its maximum output when given the correct additives to its fuel supply - redstone, gunpowder, or blaze powder, each being more effective than the last. Fully supplied and maintained, these engines will produce %d Nm of torque at %d rad/s, a total of %.3fkW.

The hydrokinetic engine converts the energy of falling water into shaft power. Note that this machine can only rotate clockwise, and therefore the waterfall must be positioned accordingly. Additionally, adjacent blocks can obstruct the paddles from rotating. Finally, this engine's power output is dependent on how far the water is falling. A 3-block fall will produce minimal power, but a 64+ block fall can produce %d Nm at %d rad/s, the highest torque of any engine, totalling %.3fkW.

The microturbine is rather unique. When given a constant supply of fuel, it supplies very little torque (%d Nm) +but does it at an enormous speed of %d rad/s, for a total output of just over two megawatts (%.3fMW).

The most powerful engine of all, the gas turbine is a monster, outputting power comparable to that of an engine of a commerical jet airliner...and with sound to match. These engines will, when fuelled, provide %d Nm of torque at %d rad/s (%.3fMW). Be warned, unless you want to find out what it feels like to go through a blender, stay AWAY from the front of this one while in operation! Neither you nor your engine will fare well.