Martian Madness

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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
BiomeBannerMartianMadness.png
Bestiary Martian Madness.png “Martians are invading!” Bestiary Martian Madness.png
“

I saw some flashing lights, high up in the sky and far away. The truth is out there, I'm telling you.

— Emote Town Guide.gif The Guide

Martian Probe.png Martian Probe (alarmed).png
The Martian Probe before spotting the player (left) and after (right). If the Martian Probe is able to escape after detecting the player, the event begins.
Martian Madness Icon.png
Progress bar icon

Martian Madness is a Hardmode, post-Golem invasion event that causes unique alien-themed enemies to spawn in place of regular enemies.

Martian Madness is triggered by a Martian Probe, which spawns randomly in the two outer lateral thirds of the world (with a higher spawn chance in the Space layer). When the Martian Probe detects a player or is attacked, it immediately attempts to fly away to escape. The event starts after the Martian Probe successfully escapes.

After the event is intitiated, the status message "Martians are invading!" is displayed, and UFOs start flying in the background (as seen in the banner above). However, event enemies can only be spawned near the world spawn point, or near town NPCs. See Notes for details.

The Martian Madness is completed after killing enough enemies from it. A progress bar will be displayed to show the progression of the event.

Summoning

The Martian Madness occurs after the Martian Probe escapes when the following conditions are met:[1]

  • No other invasion events are active.
  • At least one player in the world has at least 200 maximum health.

Completing

The Martian Madness event is completed after killing enough enemies from the event. The status message "The martians have been defeated!" is displayed when completing the event.

The required kill count is proportional to the number of players that has at least 200 maximum health in the world when the event is initiated, which can be calculated with the following formula:

[math]\displaystyle{ \text{Kill count}=160+40\times\text{Player count} }[/math]

For example:

  • In singleplayer, the required kill count is [math]\displaystyle{ 160+40\times1=200 }[/math].
  • In multiplayer, with 8 players that fulfill the condition, the required kill count is [math]\displaystyle{ 160+40\times8=480 }[/math]
  • The maximum kill count in an invasion is 10,360 (255 players).

Most enemies count as 1 kill, but certain enemies can count as more or less.[2] See the table below for details:

Enemy Kill count
Brain Scrambler Brain Scrambler(Desktop, Console and Mobile versions) 1
Ray Gunner Ray Gunner(Desktop, Console and Mobile versions) 1
Martian Officer Martian Officer(Desktop, Console and Mobile versions) 1
Gray Grunt Gray Grunt(Desktop, Console and Mobile versions) 1
Martian Engineer Martian Engineer(Desktop, Console and Mobile versions) 1
Tesla Turret Tesla Turret(Desktop, Console and Mobile versions) 0
Martian Drone Martian Drone(Desktop, Console and Mobile versions) 1
Gigazapper Gigazapper(Desktop, Console and Mobile versions) 1
Scutlix Gunner Scutlix Gunner(Desktop, Console and Mobile versions) 1
Scutlix Scutlix(Desktop, Console and Mobile versions) 1
Martian Saucer Martian Saucer(Desktop, Console and Mobile versions) 10

Contents

Characters
Unique Drops
Music

Notes

  • A Martian Probe will not spawn if the Lunar Events are active, or if a Martian Madness event is already started, or if another Martian Probe exists.
  • After exiting a world during a Martian Madness event, the screen in the main menu will still have UFOs flying around in the background.
  • Playing in Expert Mode does not increase the drop rate of Martian Madness items.
  • Exiting the world just before the Martian Probe despawns will prevent the event from occurring.
  • Martian Saucers can only spawn after 30% of the event has been completed and are much more common after 50% of the event has been completed.
  • The Martian Madness has the following features like other invasion events:
    • Dying or quitting the world will not end the invasion, nor will they affect the progress of the invasion.
    • The type, progress, and required kill count of the current invasion are saved upon quitting the world.
      • As a result, there is no way to prevent an invasion when it occurs.
    • Town NPCs cannot respawn when Martian Madness is active.
    • Unlike other invasions, the Martian Madness starts at the world spawn point, so enemies can immediately begin spawning around spawn point after the event is initiated.
    • The player must be no deeper than 67.5 tiles below the surface and be within 187.5 tiles horizontally of the world spawn point for invasion enemies to spawn. In this case, enemies from Martian Madness will completely override other enemy spawns in the current environment.[3]
      • The horizontal check can also be satisfied by the player being within 187.5 tiles horizontally of any town NPC. The town NPC's vertical position is not checked. In this case, enemies from Martian Madness only has a 2/3 (66.67%) chance to override other enemy spawns.
    • An invasion will not prevent most other events from happening, like Blood Moon, Solar Eclipse, or random Boss spawns at night. Non-boss enemy spawns can still be overridden by invasion enemy spawns, however.

Achievement

Achievement Tin-Foil Hatter.png
Tin-Foil Hatter • “Triumph over a martian invasion, when beings from out of this world come to scramble your brains and probe you in uncomfortable places.”
Defeat the Martian Invasion for the first time. (Desktop, Console and Mobile versions)
Category: Slayer Slayer

Tips

For more elaborate strategies on defeating Martian Madness, including weapon and arena recommendations, see Guide:Martian Madness strategies.
  • Martian Madness is one of the more difficult events to have occur, due to the fact that its summoning requires a random spawn of a Martian Probe. However, with a proper spawn platform or via the use of a Floating Island towards the outer thirds of the map, it can be "summoned" more easily.
  • While most minions will not deliberately target the Martian Probe, minions that deal damage on contact can still accidentally kill it before it has the chance to detect players and escape, preventing the event from triggering. Minions should be dismissed if the player is trying to cause an invasion to occur.
Using portals quickly despawns regular invasion enemies in favor of Martian Saucers.
  • Since the Martian Saucers drop the most valuable loot out of all enemies, it is usually preferable to allow as many of them to spawn as possible.
    • By using two portals or Teleporters placed about 500 tiles apart, it is possible to quickly despawn regular invasion enemies without progressing the event, giving Martian Saucer more chances to spawn as long as the invasion progress is 30% or more.
    • The Magic Conch can also be used to the same effect.

Trivia

  • Unlike most other enemies in Terraria, Martians have purple blood when killed rather than red.
  • On February 25, 2015, Re-Logic released the music for Martian Madness on YouTube, 124 days before the release of the 1.3.0.1 update.
  • The Martian Madness is one of two combat-focused events that cannot be summoned via the use of an item, the other being the Slime Rain.

History

References

  1. ↑ Information taken from the Desktop version Desktop 1.4.4.9 source code, method AI() in Terraria.NPC.cs. The related part is the aiStyle == 80 code block.
  2. ↑ Information taken from the Desktop version Desktop 1.4.4.9 source code, method checkDead() in Terraria.NPC.cs.
  3. ↑ Information taken from the Desktop version Desktop 1.4.4.9 source code, method SpawnNPC() in Terraria.NPC.cs.
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