“Spacewar! 2B”, the version of the game demonstrated at the MIT Science Open House in May 1962, is labeled “2 Apr 62” – exactly 60 years ago today.
Moreover, a first description of the game was published in the very first issue of “Decuscope”, April 1962.
Happy birthday!
(To celebrate the event, the emulation has been overhauled – it now features a full screen mode, a new splash screen using original PDP-1 font data, and the screen emulation has been tweaked, as well – and some of the descriptive text has been rewritten.)