Dread Days: Zombie Nation is another survival zombie base building game. I've played so many of these games and for the most part they are all very similar. And a lot of the time waiting is a big part of how the game is played. Wait for troops, wait for buildings, wait for traveling... A lot of waiting is involved, unless you're willing to spend on speeding things along. While the story is somewhat interesting in the early stages, you are soon tasked with building the base, growing your resources and doing other boring tasks that these games all have included in them.
There are certain combat scenes that are interesting though, I just wish there was more of those in the game. I especially liked how you could target the weak spots of the giant zombies with your sniper. Sadly this is not the usual combat in the game. Just part of the campaign combat as far as I can tell. The art work is nice though and so is the graphics, I suppose... But this is not a game I will continue to play. These types of games are all the same, and I am not a fan.