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Survive the zombie apocalypse as Allen C. Tyler, a scientist trying to figure out what makes these undead creatures tick. Experiment with them, brutalize them, feed them, give them objects to play with and discover over 250 unique reactions as you explore the full spectrum of the zombie brain. Stuck in this underground facility, you will gradually uncover the truth about the zombie outbreak as you progress in your research, discover new reactions, upgrade your research techniques, find new items to experiment with, complete achievements and find tapes and notes from the Alpha team, the previous scientific team who occupied this base.