Balancing issues hinders the fun
Concept: create a zombie a survival game
Aesthetic: The artwork definitely has the zombie formula down though it doesn't feel as dark in comparison to "Last Stand" or "Dead Frontier". The music is appropriate when it's not sad it's errie which always feels right in any "serious" zombie related game. Sound effects are cool and make sense with action taking place on screen.
Game play: I know it's a zombie survival game, but this game this game crosses the line substituting difficulty for being cheap.
Balancing issue number 1:
First of all Almost HALF THE WEAPONS ARE USELESS and counter productive against the continuing (unfair) growing number of zombies every wave: A pump action shotgun should not be more efficient then an M-16, yet it is! The weapons that are more costly should be more effective. The only way Your going to get anywhere is with the Shotgun or the flamethrower I haven't gotten to experience other weapons cause the game is just too "hard".
Balancing issue number 2:
WAY TOO MANY ZOMBIES Players are barely given a fighting chance and with a flawed upgrading system it's seemingly impossible to acquire all the abilities and weapons the game offers. I'm guessing that's our incentive to keep playing and try to persevere through against all odds but the player has too many disadvantages the zombies spawn to the point of lagging.
Balancing Issue number 3:
NOT ENOUGH SOUL ORBS: This is up for debate but when your going up against a cesspool of zombies on levels 16+ this issue becomes more apparent. Were it not for the previous issues mentioned this wouldn't be a problem.
Overall: you have all the ingredients for a good zombie survival but a poor mixture. Everything feels like it's either too much or not enough. This game is fun for my first two attempts but in the end the flaws are too distracting for me to continue. It's worth a play-though but has too many faults to keep my interest.