Quantum Link (or Q-Link) was an American and Canadian online service for the Commodore 64 and 128 personal computers that operated starting November 5, 1985.
Other noteworthy features included multiplayer games like checkers, chess, backgammon, hangman, and a clone of the television game show Wheel Of Fortune called Puzzler; and an interactive graphic resort island, called Habitat during beta-testing, then renamed Club Caribe.
Pricing was $9.95 per month, with additional fees of six cents per minute (later raised to eight) for so-called "plus" areas, including most of the aforementioned services.
Quantum Link's graphic display was better than many competing systems because they used specialized client software with a nonstandard protocol.
[2] The software evolved in two fork hosted on GitHub [3] Much of the second and third seasons of the American TV series Halt and Catch Fire is centered around the development and troubles of the fictional tech startup Mutiny, heavily inspired by the story of PlayNET and Quantum Link in the 1980s.