produced more than two prototypes exhibited at Stanford. Around the same time, a second prototype coin-operated game based on Spacewar!, Computer Space, was developed by Nolan Bushnell and Ted Dabney, which would become the first commercially sold arcade video game and the first widely available video game of any kind. Though Tuck felt that Computer Space was a poor imitation of Spacewar! and his Galaxy Game a superior adaptation, many players believed both arcade games to be upgraded variants of Spacewar!. Byte magazine published an assembly language version of Spacewar! in 1977 that ran on the Altair 8800 and other Intel 8080-based microcomputers using an oscilloscope as the graphical display and a lookup table to approximate the calculations for orbits, as well as a three-dimensional variant in 1979 written in Tiny BASIC. More modern recreations of the game for computers have been made as well. An emulated version of the original game, made publicly available by Martin Graetz and running in a JavaScript PDP-1 emulator, was made available to play on the internet in 2012. The Analogue Pocket handheld console added support for running Spacewar! on an emulated PDP-1 in 2022. The only working PDP-1s that are known to exist are kept in the Computer History Museum in Mountain View, California, where demonstrations of the machine are held, which include playing Spacewar!. In addition to Galaxy Game and Computer Space, Spacewar! had long-lasting effects, inspiring numerous other games. These include Orbitwar (1974, PLATO network computers), Space Wars (1977, arcade), and Space War (1978, Atari 2600). Additionally, in the arcade game Asteroids (1979), designer Ed Logg used elements from Spacewar!, namely the hyperspace button and the shape of the player's ship. Products as late as the 1990 computer game Star Control drew direct inspiration from Spacewar!. Russell has been quoted as saying that the aspect of the game that he was most pleased with was the number of other programmers it inspired to write their own games without feeling restricted to using Russell's own code or design. On March 12, 2007, The New York Times reported that Spacewar! was named to a list of the ten most important video games of all time, the so-called game canon, which were proposed to be archived in the Library of Congress. The Library of Congress took up this video game preservation proposal and began with the games from this list. In 2018, it was