
Note that happiness only matters while purchasing a pylon.The player is not in an evil biome ( Corruption or Crimson).There must be another NPC near the vendor NPC.an NPC who loves their biome, and at least likes their only close neighbor (or vice versa), can be happy enough even if there are too many NPCs within 120 tiles to get the solitude bonus. In a more crowded area, bonuses can be stacked e.g.Given this, it is enough to place a vendor in a biome they like, or with an NPC they like, while avoiding crowding or any biome or neighbor that they dislike. The "solitude" bonus gets most of the way there, granted by having at most one other NPC within 25 tiles, and at most three more within 120 tiles.The NPC they like (who helps make them happy) does not even need to be a vendor. Remember that NPC relationships are not always symmetrical, but only one vendor needs to be happy enough to sell the pylon.The vendor NPC must be happy, with a sale modifier of 90% or better.The Pylon Network cannot be used to travel long distances without opening the fullscreen map.Players must be within interaction range of a pylon (5 tiles) to teleport using the Pylon Network.The Pylon Network cannot be used during boss battles or when invasions are announced or in progress (including the Lunar Events).Only one of each type of pylon may be placed in a world.Pylons only function when in their respective biome.The system they form is known as the Pylon Network. Pylons are only practical if there are 2 or more in the world.Pylons will not work if an NPC is not near their home. At least a portion of the NPCs' housing tiles must be within this range, but the pylons will still work if the NPCs themselves walk out of this range.Pylons can only be used when there are 2 or more living, housed NPCs (including the Old Man and town pets) within a 169-tile wide by 124-tile high rectangle centered on each pylon.They allow a player to teleport to any other pylon by pressing the ⚷Interact / Open button on them, which will open the fullscreen map, and selecting the other pylon there. Pylons are furniture items that appear as a large stone or crystal hovering and rotating above a biome-themed stand.
Two pylons being used, as shown in the 1.4 changelog.
