Personal Computer Museum, Canada's Videogame Museum




Sierra On-Line


Release Date: 1/1/1981
Manufacturer: Sierra On-Line
Donated By: David Williams
This game is a very early Arcade port for the Vic-20. The bulk of cartridge games for the Vic-20 begin to appear in 1983 - this one is dated 1981. Threshold is a Space Invaders style game. In this game, the player has five space ships and must use them to zap a variety of aliens who are, presumably, intent on some sort of malice. The game manages to avoid the repetitive game play found in games like Atarisoft's Galaxian through a variety of different aliens who fly in distinctly different patterns.
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