Guide:Base defense

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This Guide is currently being revised or has been revised partially. It does not meet all quality standards yet.Issue(s):
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Reason: "No longer necessary, contents merged into Guide:Bases."
See also: Guide:Bases.

Defending your base against monsters is unnecessary in a Normal mode world, as the presence of NPCs will reduce enemy spawn rates to zero. However, it may be worth setting up a few precautions if you are playing on Expert mode or during Events, where enemies will still spawn. This guide covers suggestions for keeping your base safe.

Possible Methods[edit | edit source]

  • By far the easiest way to defend your NPCs is to build a floating base above the ground, with Ropes or flight as the only means of access. This will not prevent NPCs from living at your base, as they can teleport to houses they cannot otherwise reach (while offscreen).
    • This is the only way to defend your base against enemies that can pass through walls, such as Wraiths. Wraiths can move upwards while passing through blocks, but cannot float upwards through empty space.
    • Flying enemies like Demon Eyes can still reach floating bases, but cannot open Doors. They are not a threat if your base is sealed off.
  • Enemies cannot break open doors if they are unable to stand in front of them. Elevating a door at least two blocks above the ground will grant absolute protection against enemies that can open doors. You may additionally line the entrance with a Lava pit, but that comes with equal danger to yourself and is not recommended.
    • Enemies also cannot force open doors if a piece of furniture, like a Chest or platform, is directly against the inside of the door. Players will have to face away from the house to open the door from the outside.
  • You can place platforms in the floor or ceiling instead of using Doors. This will stop NPCs from moving outside their houses and endangering themselves.
  • To defend against Meteorites, either build a Sky Bridge across the entire world, place Chests in your base at most 50 blocks apart horizontally, or leave a large amount of Meteorite undisturbed on the surface to prevent Meteorites from landing ever again.

Offensive traps[edit | edit source]

Generally, placing lava and wired traps near the area where your NPCs are housed is a bad idea. Offensive traps can provide a bit of aid during invasions, but generally, the best practice in the event of an invasion is to fight somewhere other than your base. Nevertheless, the following tips may be useful if you want to set up a structure that can automatically kill enemies with little to no danger to yourself.

  • Pits can be lined with a thin layer of lava. Lava will not destroy valuable items of any Rarity higher than white, but if the idea of coins being burnt up in lava bothers you, simply spread a single Lava Bucket across a long enough distance so that coins dropped in will float above the lava without touching it. This should equate to around one bucket per eight blocks.

After rescuing the Mechanic from the Dungeon, you can wire traps to deal extra damage in more versatile ways:

  • A very simple mechanism is a buried Geyser wired to a single Pressure Plate.
  • Dart Traps can be wired to a Timer to fire continuously without further input.
    • Fire rate can be staggered by using a "rainstick" mechanism, as shown to the side. The mechanism is activated by manually falling through the platforms with the pressure plates on them. Note that the Traps must be moved into the background with Actuators, and the Actuators must be removed after doing so. 28 Dart Traps are required for continuous fire if the rainstick is set up in a Γ shape, and 21 if set up in an L shape (as shown).
    • Super Dart Traps, Spear Traps, and Flame Traps can replace the Dart Traps in the above mechanism once you have access to the Jungle Temple. Use a hammer to rotate them as you see fit.
  • Spiky Ball Traps are the easiest to set up; they need only be attached to a 1 Second Timer to work. Dropping the Spiky balls from a great height is not necessarily advantageous, as you want to maximize the time the balls spend bouncing near the ground to damage groups of enemies. Instead, embed the traps in the ground and hammer them twice so they roll out the spiky balls more gently.

Multiplayer security[edit | edit source]

For advice on creating in-game hazards towards other players, see Guide:PvP § Traps.

Nothing you do will prevent a hostile player from damaging or destroying your base if they have the means to do so. No base can ever be completely safe, even from a griefer armed with only a Copper Pickaxe and some Wood. The following realistic tips can help protect your base by reducing your likelihood of encountering a griefer, or reverting the damage that they might cause.

  • Only play with people that you trust, or have known for a long time.
  • Otherwise, if hosting, save a backup copy of your world and character files, so you can restore them to their previous versions if something unexpected happens.
  • Another method for hosts is to turn Autosave off, and if your base is damaged, exit Terraria directly by closing the window. All progress since the world was last loaded will be lost, but the damage will also be reverted.
  • If you are playing on a public server, protect your structures using the server's built-in TShock commands if available. Most populated public servers run TShock.