hm... on wave 21 i got a lag and all zombies freezed... cant kill them and cant touch them... if i move... they move too :D wave 22... only two big zombies coming... 23 same...
I have killed the last guy... my father i think... but i cant go trough the door back to the beginning of my adventure... should i walk all the way back?
What configuration of your PC? We tested the game in high and medium performance PC and all worked well.