Metro09: I'd say the 'shooter' series games are worse than Shadowgrounds. Frozenbyte is a better, more professional operation across the board. Content wise they're about the same but Shadowgrounds has more polish.
Nah. What Shadowgrounds suffers from is that ... Well ... Basically, you can only get so many opponents on-screen with 3D and pretty effects.
What shooter games do, however, is a lot of sprite-based monsters. And I mean, a lot. As in you can't miss when shooting. IT'S OVERWHELMING! Personally, I liked Zombie shooters and Alien shooters far more because of that - AND slight RPG elements. You just ... Run, shoot, and hope to survive. It's faster, more adrenaline-filled, FAR more hectic and generally it seemed more fun to me compared to ShadowGrounds, which was more polished and optimised, but wasn't as much fun for me.
Eh, IMO, of course.