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"I was looking for my headquarters. It had to be safe from the coming war, it had to be an island, it had to be entirely private, and it had to be capable of industrial development. In the end I purchased Crab Key. And here I have remained for fourteen years."

A Supervillain Lair (or a Hero's Headquarters) At Sea! Isolated from any inference of those pesky heroes, our resident baddies can concoct their schemes of world domination in peace. At least until the third act.

Bonus points if the island, or part of it, is shaped like a skull. Extra points for having an active volcano form part of the base, despite the obvious problems with heat keeping such things from being practical in real life.

Often equipped with a Den of Iniquity. See also Elaborate Underground Base, Underwater Base.

Examples of Island Base include:

Anime and Manga

  • Cyborg 009: An Island Base showed up in the first episode of the anime. It was used by two Mad Scientists like their Mad Scientist Laboratory.
  • Mazinger Z: Big Bad and Mad Scientist Dr. Hell had two Island Bases: Bardos, an ancient Greek island full of underground mazes and labyrinths where he found an army of Humongous Mecha: and Hell Island, an island near from the Japanese coast where he moved later in the series. It was a barren, rocky islet. A low mountain rose in the center, and several giant faces had been carved on its slopes. The Dragon Baron Ashura also had an Island Base doubled like a Cool Ship: the submarine fortress Salude.
    • Great Mazinger: Marquis Janus' Home Base was at once a Cool Ship (it was mobile and could swim or dive underwater), an Island Base (it was shaped like an island) and a Volcano Lair (an artificial volcano had been built in the center).

Comic Books



  • Most of Billy & Howard and Duumvirate take place on one of these.
  • "Lincoln Island" is the headquarters of Captain Nemo and the harbor of the Nautilus in The Mysterious Island
  • The titular "Island of Dr. Moreau" by H.G. Wells.
  • Jurassic Park
  • In The 39 Clues universe: the Ekaterinas had a island base inside the Bermuda Triangle.
    • The Madrigals have Easter Island as a base.
    • There's also the Cahill ancestral home and the Gauntlet, on an island off the coast of Ireland.
  • In Soon I Will Be Invincible, Dr. Impossible used the same island base for 14 years before the heroes finally cracked it. At the climax of the novel, he returns to construct his new Doomsday Device in the ruins.

Live Action TV

Video Games

Web Comics


 Dr. Steve: It was your mistake to trespass on... [[[Dramatic Pause]]]... the Isle of Doctor Steve!

Torg: "Isle"? We're in the woods. I never left the mainland!

Dr. Steve: Do you know how expensive islands are these days?


Web Original

  • Villain Source (formerly Villain Supply) has options of either a Skull Island or a subterranean base on a volcano island.
  • Kate Modern Big Bad Michelle Clore's evil lair is located on (Real Life) Adak Island.
  • At the beginning of episodes of the Dr. Steel show, Doctor Steel's secret laboratory is shown to be on an island. Supposedly this island is located in the Pacific, near Hawaii.

Western Animation

Real Life

  • Principality of Sealand: A small former UK military installation used by various groups for a number of different purposes — from radio to server room.
  • World War 2 involved a lot of these, which included:
    • Pearl Harbor
    • Fort Drum (AKA the concrete battleship)
    • Corregidor
    • the Channel Islands
    • Betio
    • Iwo Jima
  • Chagos Archipelago. It houses a massive US military base at Diego Garcia. It was used for reconnaissance in the 1973 Arab-Israeli war and saw wartime use in the first Gulf War. After 9/11 it was key to the wars in Afghanistan and Iraq. It may house nuclear weapons and may be a "black site" for detaining prisoners. It is more secretive than Guantanamo Bay - which is probably why most people have never heard of it.