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This week's free game: "Defender" | The Spokesman-Review
Download Defender & Play Free | Classic Retro Games
Defender Arcade Game Rental - Retro Party - San Francisco - San Jose
Indie Retro News: Planetoid - A side-scrolling shooter based on the classic arcade game Defender!
Defender - IGN
Defender / Defender II Arcade Video Multi Game Machine - AceAmusements.us
File:Arcade Defender, Made by Entex Industries, Inc., Made in Taiwan, Copyright 1981 (LED Handheld Electronic Game) (2).jpg - Wikimedia Commons
The Defender Project. – clockworkrobot
GitHub - philspil66/Defender: Defender is a scrolling shooter video arcade game developed by Williams Electronics in 1980. This is the original source code for the Red Label version.
Defender Longplay (Arcade) [QHD] - YouTube
Defender - IGN
Defender (1981) | Defender, Shooter video game, Arcade
File:Williams Defender Arcade Video Game.jpg - Wikipedia
Defender - Phaser
Original Defender Arcade Machine by Williams | The Games Room Company
Defender: an all-time classic that still offers lessons today - Polygon