The 66th game a day game is Doom 64 on the Nintendo 64
Following the conclusion of the original Doom series, the sole Marine who survived the horrors of Hell returned to Earth, reclaiming it from the invasion that almost eradicated the human race. Demons still lingered within the abandoned halls and complexes of Phobos and Deimos. As a last-ditch effort, the military decided to bombard the moons with extreme radiation in hopes of killing off any remaining demons. It was initially successful, however, something survived the exposure. The radiation blocked the military's sensors, and allowed something to slip past them undetected. This mysterious entity, possessing the ability to resurrect any demon it came across, recreated the entire demonic horde and made it stronger than ever before. A Marine strike force was ordered to contain the advancing armies of Hell, but was mercilessly slaughtered within moments. The player's character is the sole survivor of this group.
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