Could you kill your best friend?…

Twilight, her friends and the citizens of Ponyville are unexpectedly taken to a deserted island off the coastline of Equestria where, as part of a merciless secret royal government research program, they are provided with weapons and forced to kill one another until only one survivor is left standing. Sworn on a promise, Twilight joins with Rarity to find a way to escape and survive. But the line between friend and foe is wearing thin. Can anypony put a stop to the 'game'?… Or is everypony as good as dead?

*For lazy people: Main story starts - Chapter 3*
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*This story is closely based off the Japanese novel Battle Royale by Koushun Takami*