Summary: The absurdly low reviews are completely undeserved. Its direct predecessor, Dead Horde, had good concepts, but was fatally flawed. Primal Fears kept the good concepts and fixed the fatal flaws. It's a simple game with little depth, but it's fun to play and it has a nice amount of tension (though Dead Horde did tension slightly better). I've never been a fan of the checkpoint system I think it's a very lazy way to design games but at least it works in Primal Fears.
Summary: Primal Fears is a huge improvement upon its predecessor Dead Horde. I enjoyed the first game but not without a ton of frustration as it was not optimized to say the least the lag was horrible even on lowest settings. However Primal Fears was a joy to play. Don't listen to the haters this is a fun little game. Not perfect but fun.
Summary: A lot of these reviews aren't even true, for example I can join online servers with people who are not my steam friends so I don't know what the fck that guy was talking about that reviewed this game earlier. This is not a triple A game but that doesnt mean its not worth buying. I personally think the great was a great deal and a ton of fun. its like a lax diablo 3 with guns and zombies. Definitely a fun game for great casual co-op play with friends.
Summary: No online servers i bought this game cause it had co-op but you can only play with your added friends on steam....very dissapointing because this game seems very fun "if you are playing with people" too bad they made this diffacult for people that are new to steam or dont have many friends on steam..