Defender

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Screenshots - Defender

Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot
Defender atari screenshot

Information - Defender

GenreShoot'em Up! - DefenderYear2025
LanguagePublisher[no publisher]
ControlsKeyboard, JoystickDistributor
PlayersDemo, 1Developer[n/a]
ResolutionLowLicensed from-
Programmer(s)

sark02

Country
Graphic Artist(s)

sark02

SoftwareEnglish
Game design

Jarvis, Eugene

Box / InstructionsEnglish
Musician(s)

[n/a]

LicensePD / Freeware / Shareware
Sound FX

sark02

Serial
Cover Artist(s)ST TypeST, STe Enhanced / 1MB
MIDIVersion[WIP]
Dumpdownload atari Defender Download / STNumber of Disks1 / Double-Sided
Protection

Additional Comments - Defender

Please take a look at Atari-Forum for more info.

Instructions - Defender

Here's a work-in-progress port of the 6809E Williams Defender sources from the HistoricalSource repo on github https://github.com/Historicalsource/Defender, to the Atari ST, running at 50Hz and requiring at least 1MB RAM.

The algorithms and game play are by Eugene Jarvis, Sam Dicker, et al.. If it feels like Defender, then that's because of them. If it doesn't, then that's because of me.

Work-In-Progress. Currently implemented bad guys are Landers, Mutants, and UFOs. At the end of a game, the game restarts. No attract mode or high-score table yet.

Keys are:

D/C Up/Down

S Smart Bomb

F Hyperspace

M Thrust

L Fire

SPACE Reverse

Supporting DMA samples on STEs with 2MB+ of RAM, or YM2149 samples on STEs and STs with 1MB RAM. STEs with DMA sound will have much less chop when the screen gets busy.

Most of the STE samples are 12.5kHz. A few, where I could hear a difference, are 25kHz, but not all as that blew beyond 2MB.

Initial classic joystick support is in, supporting joystick 1 up/down/left/right/fire.

Trivia - Defender

Sound
Features digitized sound fx


Graphics
Features overscan (introduction screen)
Features overscan (in-game)


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