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Defender (TI-99/4A)

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Defender put players in charge of a ship sent to protect mankind from wave after wave of attacking alien forces.

Armed with smart bombs and the ability to use hyperspace to move quickly around the planet, the player ship must fight against Bombers, Pods, Swarmers, Baiters, and Landers - that can capture the humanoids and transform them into deadly and relentless Mutants. Fail to save the humanoids from freefall or Mutant transformation, and the planet is destroyed.


Defender TI-99/4A Attack wave complete
Defender TI-99/4A Better save that human that the lander has captured!
Defender TI-99/4A Title screen and game options
Defender TI-99/4A Various enemies attack!

Alternate Titles

  • "Earth Attack" -- Zellers title

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1001 Video Games

The Arcade version of Defender appears in the book 1001 Video Games You Must Play Before You Die by General Editor Tony Mott.

Arcade success

The original Defender arcade was slow to become a hit when it was released as many thought it was too difficult due to its control configuration of five buttons and a joystick. It ultimately gained many fans and remained popular throughout the 1980s. Defender has been described in Gamasutra as "quite possibly, the hardest significant game there is".

Board game

In 1983, Entex adapted this video game into a board game.


Atari's 2600 release of Defender included the comic book Atari Force #1. Here is that comic at AtariAge.com


Game creator Eugene Jarvis cites Space Invaders and Asteroids as major influences on the design of Defender.

[Source: Retro Gamer Magazine, Load 55]


Eugene Jarvis, creator of both Defender and its sequel Stargate, says that although the gameplay and coding of Stargate is more refined, he prefers the relative simplicity of the original Defender.

[Source: Retro Gamer Magazine, Load 55]

References to the game

  • Defender a song inspired by it on the full-length Pac-Man Fever album - The Defender.
  • In the 1983 episode Smaller Than Life from the TV series Magnum P.I., a kid is seen playing Defender on an Atari 800.

Information also contributed by LepricahnsGold, NĂ©lio, PCGamer77, Pseudo_Intellectual and FatherJack

Related Web Sites

Corn Popper (69555) added Defender (TI-99/4A) on Dec 23, 2004
Other platforms contributed by Trixter (8711), PCGamer77 (3008), chirinea (35989), RKL (5606), Martin Smith (63028), Pseudo_Intellectual (45140) and Servo (55746)