A fantastic concept, the fact that 14 people worked on this individually is insane considering the game delivered. I fell in love with the arrow key combination system for attacks.
While the combat is engaging, the problem I personally have is that it's difficult to know where your own collider is and then constantly getting zombies attacking you. It took me longer than it should have to get the starting sword.
Once I got to the next area the slimes were moving so fast that I could barely get a hit in and kept dying.
But the NPC's, health potions, environment design, and attack mechanics is fantastic.