Official Killer Instinct Prima guide authors, Reepal "Rip" Parbhoo and Bill "SabreTom" Menoutis are both giving away one hardcover Killer Instinct guide each day to fans who follow and retweet the sweepstakes message. Below are the lucky winners so far:

Day 1: Tuesday, Nov. 12

KillingCereal

TheRealKonqrr

Day 2: Wednesday, Nov 13

RedRum26

Shinkuhadoken88

Day 3: Thursday, Nov 14

Dat_Stroke_TPB

50percentelf

Day 4: Friday, Nov 15

Piglizard9

Skinnypuppy0000

Day 5: Saturday, Nov 16

MikeO82

blbeel

Day 6: Monday, Nov 18

DANSENDEBI

grequiem

Day 7: Tuesday, Nov. 19

Vincent__Moreno

omegaroc

Day 8: Wednesday, Nov 20

The_Fireseed

TheRafCave

Day 9: Thursday, Nov 21

Eckoalltheway

TG_Sasarix

Day 10: Friday, Nov 22

RyeANDRinGaming

malexich

Be sure to follow and retweet Prima Games, Rip, and MK_TomBrady and maybe you'll be on this list soon! Or, don't leave it to chance and get your copy of the Killer Instinct guide now.