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First reading taken Aug 9, 2026 — the chart appears once there are two.
Mobile game · 2015
Patient Zero: Day One
Patient Zero: Day One is a frantic top-down infect-em-up. The infection is surging through your body! The pain! The pain! You will succumb within seconds, unless you feed! Run freely around the city, hunting down fleeing victims. You must bite them to survive, but as you infect them, they too will turn, and also need to feed. Infect as many victims as you can and earn Toxins to spend. Unlock and equip mutations to change how you play. Unlock different zombies to play as. Earn rewards for total lifetime infections. How many victims can you infect? How long can you survive?
Community activity
Last checked Aug 9, 2026
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How many people gather around Patient Zero: Day One outside the stores — members, subscribers and live viewers.
Not tracked for Patient Zero: Day One: Google Play, App Store, Steam, Discord, Reddit, YouTube. A platform appears here once the game has a link to it — most mobile games have no Steam port or subreddit, so a gap is normal rather than a sign the game is small.
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Frequently asked questions
When was Patient Zero: Day One released?
Patient Zero: Day One was released on June 4, 2015 for Android and iOS.
What platforms is Patient Zero: Day One available on?
Patient Zero: Day One is available on Android and iOS.