Patient Zero is a small survival horror game I've been developing where instead of surviving against zombies YOU are the zombie. I've released an early access demo (so the levels themselves aren't quite finished, the AI is noticeably not how it should be on level 4). It does crash quite a bit so I've also posted a download to a low quality version which still contains the exact same stuff as the other demo, just with lower graphics but that one hasn't crashed on me yet. I'm hoping to release an extended demo next week with an extra level, bug fixes and (hopefully) less crashes.
You can download the four level early access demo here.