Very good game aside from the constantly mentioned issues in the higher rated comments. I do find it ABSOLUTELY hilarious that the hero is left handed while facing right and right handed while facing left xD
The game glitched when I tried purchasing face masks right as it hit day 40. Kept playing until day 80 and then realized that even with all infected gone I couldn't win, cool story...
Amazing game, simple to get the hang of and a nice GUI. 5/5. I do have a couple suggestions for ease of use. Use Q and E to cycle through the upgrade menus, press space to select that menu using this shortcut and Q/E can be used to move up and down the upgrade menu and space to upgrade whichever option is highlighted (R could probably be used to go back to the menu cycling). Not that using the mouse is difficult, just a thought for upgrading on the fly during waves.
Before I got to the last levels 4/5. When I got to them and saw how you increased the "difficulty" 2/5. Making it near impossible to hit is not making it difficult, its bad design.
Awesome game, like others have said more player levels would be a great addition. 4/5. Also, found a small glitch where if a boss is following you when you reach the end you die and the medium badge does not trigger.
4 stars only because there is a problem with checking if some weapons hit an object, it seems to be only when you shoot with more force, the weapon will actually go through what you're aiming at. Yay collision checking, but otherwise an epic game good sir or ma'am, hope to see a multiplayer out soonish.
Other than the fact I just traveled -134.4 hours until my destination this game is pretty good. Make the action buttons un-clickable until the screen reloads and it'll fix that.