Earth -818
A variation of our Earth wherein all the humans have been either turned to dust, or are under refuge due to an extremely powerful race known as the Daemons. The humans are slowly building advanced mechanisms to combat them, but one of them got a bit too advanced. Now you, are a mechanism. A mechanism that cannot only fight off Daemons, but possess the likes of other mechanisms, and gain different abilities, weapons, forms... everything, really. You must upgrade, and fight the Daemon General, before they send reinforcements.
