A downloadable game for Windows and macOS

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A deadly zombie virus has broken out across the world driving the world into chaos.  The World Health Organization has been unable to find a cure.  The top scientists believe a cure can be found by uncovering the location where the outbreak first started and finding the first affected person--patient zero.  You have tracked down a top secret chemical research facility in the mountains.  It is there that you believe the outbreak first occurred.  Get inside the secret facility.  Find patient zero.  Find the cure.  Survive.


Patient Zero is a first person zombie horror shooter.   There is limited ammo and flashlight light batteries.  The flashlight can't be turned off and drains slowly...so move fast!  It is crucial that you manage your resources.  Patient Zero is currently an early idea prototype.  The game was developed by a single person.  Hope you enjoy the game!


There is a HOW TO PLAY demo inside the game with all of the controls.  Game requires a keyboard and a mouse with a scroll wheel.


Thank you for playing Patient Zero!  I really enjoyed making the game and would love to hear your feedback both positive and constructive criticism, so I can continue to improve my games in the future.  Please post any feedback in the comments below on this page.  


Donations are not required, but would be much appreciated to help me to continue making games.  With enough support for Patient Zero, improvements will be added to the game such as future levels, better animations, reloading, more zombies, etc.  

PlatformsWindows, macOS
Rated 4.0 out of 5 stars
AuthorKO Games
GenreShooter, Action, Survival
Tags3D, First-Person, FPS, Horror, Survival Horror, Unity, Zombies
Average sessionAbout a half-hour
InputsKeyboard, Mouse


Download NowName your own price

Click download now to get access to the following files:

Patient Zero Windows 2.0.zip 255 MB
Patient Zero Mac.app.zip 280 MB

Development log


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this game was Amazing ! took me 5 attempt to finish it and the darkness with the sound effect really kept me on my toes. you really motivated me to create something good with the zombie runner project I started ! congratz again for this project.

Thanks!  Glad you enjoyed it.  I had fun with the project.


This is a super fun game! Really enjoyed it. Good balance, music to get the heart pumping, and blue skull collectables! Hope you keep updating and expanding on this. Here's my let's play:


Thanks for the support!  I had a lot of fun making the game.  I really enjoyed your play through.  It helps to get live feedback like that to see what changes need to be made to the game.  For some reason the ending did not trigger correctly for you.  I haven't been able to replicate what happened in your play through yet.  I just downloaded the game and played it all the way through and the ending played out correctly.  If you have a chance would you be able to restart the game and try beating it again to see the same thing happens again?  I may need to tweak how long the battery lasts as well since it may run out too quickly and it does get very dark in the container room.

Thanks for letting me know! I will have to play through it again for sure to get the true ending. Need to see if I can find all 8 blue skulls anyway :D


Dear Dev, please Update this game and Make it Bit longer.To be Honest Its an epic Game. :) 

Really fun game!  Loved the sound effects and music in the game.  Very creepy!

Show post...


Full Gameplay. Really Nice game Dev Keep your Good Work Going...If you Like my Video please share it :)) Rated 5/5!

I'm glad you enjoyed it, and I appreciate the feedback.  It was a lot of hard work, but I had a ton of fun making it.