Reactor is a raster video arcade game released in 1982 by Gottlieb. The object of the game is to cool down the reactor core without being hurled by magnetism and repulsion by enemy swarms of nuclear particles. The game was ported to the Atari 2600 by Charlie Heath and published by Parker Brothers the same year. Reactor was developed by Tim Skelly, who previously designed and programmed a series of vector graphics arcade games for Cinematronics, including Rip-Off. It was the first arcade game to credit the developer on the game's title screen.
The player controls a cursor that can move freely within a screen-sized arena, the nuclear reactor. The center contains a sun-type gravitational power source, the slowly overheating reactor core. The surrounding wall or the sun, if touched results in death. The cursor is controlled with a trackball by the player, who has to roll it fast in one direction in order to overcome the momentum of gravitation imposed by the sun. Swarms of enemy objects named after various radioactive particles float around in the reactor arena, obeying simple physical laws. These enemies can freely bounce into the walls at low speeds, have a repulsive force against each other and actively attack the player cursor. Boss types often break up into several smaller particles.
The object is to survive the sun and walls while gaining the highest score possible. It takes a delicate touch. Rather than moving the cursor/avatar left, right, up and down as in many arcade games, it is controlled by gravity and moves freely; with the player only being able to accelerate it rather than control its movements directly. Meanwhile the enemy particles are getting so aggressive that it can get very difficult to avoid being pulled in by the sun or touching a wall.
The basic gameplay consists of accelerating the cursor just at the right times so that it circles the reactor core with enough speed to have control via its own momentum when the enemy particles try to knock it off course, and then to place decoys and actually use the acceleration of the ball itself to knock enemies into control rods, traps or the reactor core. By pressing the primary button the player cursor can go into high power mode, providing higher repulsion of enemies and conversely higher risk to the player.
To ease the task the player also has a certain number of decoys at their disposal. Pressing the secondary button places a decoy to attract the enemies, luring them into two traps in the corners of the screen for bonus points, into destroying reactor rods or directly into the walls to kill them. Destroying a row of reactor rods gives the player one more decoy, as well as resetting the size of the slowly swelling reactor core.
A time limit is enforced by the slowly swelling reactor core, which limits the space to move about in the arena. Although the reactor doesn't actually melt down, the decreasing space provides for gradually increasing difficulty. After defeating the first wave of enemies, the solid reactor core changes into Vortex core, unlike the Protect core, is lethal to touch (thus making such levels significantly harder).
The Atari 2600 version plays somewhat differently due to the fact the energy shield is always up. The rules are almost identical. It uses either a joystick or a trackball, although the rules book supplied with the game only mentions use of a joystick. The difficulty switches set the sensitivity of the stick or ball, which can yield a control scheme very similar to that of the arcade. There are no voice overs, and the bonus counter is invisible. Additionally, the bonus counter can only hold so many points, after which points are added directly to the player's score. Players are not given the option to start with seven lives. A bug in this version causes the collision detection to be erratic near the entry to the bonus chambers.
More details about this game can be found on
Wikipedia.org.
Find digital download of this game on
GOG
or
Steam.
Videogame Console:
This version of Reactor 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 on Amazon or AliExpress or in some of your favorite online stores.
Available online emulators:
5 different online emulators are available for Reactor. 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 Reactor are summarized in the following table:
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This version of Reactor 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 
