I'm not a fan of games made for multiple game jams, it just screams that you aren't taking the trijam seriously and just want to get your own game to be popular by showing it to more people.
However you're a bit lucky, you're not the only zombie game in this trijam and I think the game is actually better than the other one. For instance, you actually had sound in your game and I couldn't just stand in a circle forever alive because the zombies AI were too dumb to get caught on architecture. (That's mainly because there's no background, but hey sometimes less is more).