A brutally awesome science experiment allows rats to play DOOM 2 using a unique virtual reality setup. The hardcore first-person shooter sequel launched in 1994, bringing with it even more levels of Hell to traverse and a whole host of new demonic enemies to butcher. The classic titles are regarded as the gaming industry's first true first-person shooters, and the titles have remained relevant thanks to rereleases and updates of DOOM and DOOM 2which come about every so often.
id Software's 1993
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