Icar is a free science fiction role-playing game (RPG) designed and published by Rob Lang. The game has been played since 1990 and shared online since 1996. Icar is a typical space opera with a race of killer robots, bionics, faster than light space travel and energy weapons. Icar can be downloaded as a PDF for free from the official website.The majority of Icar is written by Rob Lang, with contributions from Andrew O'Byrne.