A Pylon is a device in the fictional 3rd person strategy game Starcraft by Blizzard Entertainment. They are a key building for the Protoss race. Warping in a Pylon will allow probes(the key Protoss constuction unit) to warp in other buildings within a certain radius of the pylon. Pylons also provide a boost of 8 P.S.I. per pylon built. P.S.I. Is the number that limits the amount of men you may have created any time. Creating more pylons allows you to maintain a larger army.