From the BFG to the shotgun, from troublesome imps to the spectre of shareware – Doom is one of the rare titles that can be considered a true icon in gaming’s brief but glorious history.The first public version of Doom was uploaded to Software Creations BBS and an FTP server at the University of Wisconsin-Madison on December 10, 1993.On this day in 1993, the general public got their first glimpse into the wonderful, scary, horrifying, twisted world created by John Romero and the legendary John Carmack.On this day in 1993, gaming took a giant leap on from its day-glo past and into a brave and graphically thrilling new world.RetrospectiveIt’s all too easy to look back in time and decide what is historically important or relevant, but Doom is one of those rare beasts that would make it onto almost any well-considered list of the seminal games.Most obviously it truly popularised first person gaming. A year before Doom, Carmack, Romero and Tom Hall’s Wolfenstein 3D had been a hit and introduced us to a world of first person perspective shooters – a graphical trick that had stemmed from developers finding it easier to not have a playable character on screen -…