InstructionsUse the mouse to aim and shoot, space bar to pick up items, E for serum, H for health, Q changes weapons, R reloads
About Serum: AftermathA zombie apocalypse! Blow em back to hell
Serum: Aftermath is an online shooting game developed by MaxGames, and has been played 24145 times on Bubblebox.com.
72% of people have voted thumbs up