Threshold is a space combat-themed fixed shooter written by Warren Schwader and Ken Williams for the Apple II and published by On-Line Systems in 1981. The game was heavily influenced by Sega's Astro Blaster arcade game. Ports to other systems were all released on ROM cartridge: Atari 8-bit family and Commodore VIC-20 in 1981, Commodore 64 in 1983, and ColecoVision in 1984. An Atari 2600 adaptation was published by Tigervision in 1982.
The player controls the spaceship Threshold, using its laser weapon to destroy waves of alien attackers. When a wave is eliminated, another appears. As in Astro Blaster, firing the laser increases its temperature, and it cools down when not being used. If the temperature bar fills completely, then the weapon cannot be used until it fully cools. Once per ship, pulling back on the joystick activates a 'warp drive' that slows the action down.
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This version of Threshold was designed for Atari 2600, which was commercially very successful video game console of second generation produced by Atari from 1977 to 1992. It was the first console that used removable memory modules with games. At the time of its greatest fame, more than 30 million units of this console were sold for about $ 200 a piece. To date, the game library for this console contains nearly 1,000 original games. More information about the
Atari 2600 can be found here.
Recommended Game Controllers:
You can control this game easily by using the keyboard of your PC (see the table next to the game). However, for maximum gaming enjoyment, we strongly recommend using a USB joystick that you simply plug into the USB port of your computer. If you do not have a joystick, buy a suitable USB controller in Amazon or in some of your favorite online stores.
Available online emulators:
5 different online emulators are available for Threshold. These emulators differ not only in the technology they use to emulate old games, but also in support of various game controllers, multiplayer mode, mobile phone touchscreen, emulation speed, absence or presence of embedded ads and in many other parameters. For
maximum gaming enjoyment, it's important to choose the right emulator, because on each PC and in different Internet browsers, the individual emulators behave differently. The basic
features of each emulator available for this game Threshold are summarized in the following table:
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