WMS Industries · Atari* +1*
Defender

Where and when.
- 1981
- Date precision
- Year only
- Platform
- Atari 2600
- 1981
- Date precision
- Year only
- Platform
- arcade video game machine
- 1981
- Date precision
- Year only
- 1981-02
- Date precision
- Month
- 1982
- Date precision
- Year only
- Platform
- Atari 5200
- 1982
- Date precision
- Year only
- Platform
- Entex Adventure Vision
- 1982
- Date precision
- Year only
- Platform
- handheld electronic game
- 1982
- Date precision
- Year only
- Platform
- Atari 8-bit family
- 1983
- Date precision
- Year only
- Platform
- ColecoVision
- 1983
- Date precision
- Year only
- Platform
- Intellivision
- 1983
- Date precision
- Year only
- Platform
- Apple II
- 1983
- Date precision
- Year only
- Platform
- Commodore VIC-20
- 1983
- Date precision
- Year only
- Platform
- Texas Instruments TI-99/4A
- 1983
- Date precision
- Year only
- Platform
- Commodore 64
- 1983
- Date precision
- Year only
- Platform
- PC booter
- 1994
- Date precision
- Year only
- Platform
- Classic Mac OS
- 2000-07
- Date precision
- Month
- Platform
- web browser
- 2006-11-15
- Date precision
- Exact date
- 1981 · Atari 2600 · Europe*
- Release date
- 1981*
- Date precision
- Year only*
- Platform
- Atari 2600*
- Market
- Europe*
- 1983 · Atari 5200 · USA*
- Release date
- 1983*
- Date precision
- Year only*
- Platform
- Atari 5200*
- Market
- USA*
- 1981 · Atari 2600 · USA*
- Release date
- 1981*
- Date precision
- Year only*
- Platform
- Atari 2600*
- Market
- USA*
- 1983 · ColecoVision · USA*
- Release date
- 1983*
- Date precision
- Year only*
- Platform
- ColecoVision*
- Market
- USA*
- 1981 · Atari 2600 · Japan*
- Release date
- 1981*
- Date precision
- Year only*
- Platform
- Atari 2600*
- Market
- Japan*
- 1983 · Intellivision · World*
- Release date
- 1983*
- Date precision
- Year only*
- Platform
- Intellivision*
- Market
- World*
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* Provisional data