This article is for the video game. For the race, see Indianapolis 500.
Indy 500 is a video game developed by Atari for its Video Computer System (later known as the Atari 2600). The game was one of the nine launch titles offered when the Atari 2600 went on sale October 1977. Sears Telegames later released Indy 500 as Race; no changes were made to the gameplay. Indy 500 was based on the earlier 8-player arcade game Indy 800.
This video car racing game — ostensibly named after the Indianapolis 500 — offered a number of games (listed below).
Included with each game was a set of two driving controllers, which were identical in appearance to the paddle controller, with two differences. First, driving controllers can rotate continuously. The paddles had stops. Second, each driving controller was wired to its own plug. Paddles were paired to a single plug. They are not interchangeable as the paddle controllers used a potentiometer to measure absolute position, and the driving controllers used an incremental rotary encoder to measure relative position- two very different ways of inputting data.
Game variations 
Among the racing games included:
- Standardized racing games: Players could opt to race against the clock or complete 25 laps around the course the soonest. A number of courses were featured (either dry or "ice-covered").
- Crash and Score: Players competed — either against each other or a computer opponent — to crash into a white square randomly placed on the track. The square was moved whenever one player crashed into it.
- Tag: Each player controlled a car. One was blinking and had to avoid being struck by the other car (which was "it").
- Ice Race: Standardized racing, but with a race course that was supposed to be covered in ice, and thus behaved as if it were slippery.
Each game allowed the player to determine the following:
- Whether the game had a time limit or continued until a certain score was reached.
- The number of players (one or two). In one-player games, the player competed against a computer opponent.
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