I admit I didn't quite get this manhwa. The art is epic, and the premise is something that's always resonated with me (death games! camaraderie! perseverance!), so I was pretty much sure I'd love it.
But the first chapters got boiled down to "when the dude's about to die, he gets a level-up" and "everything you can do, I can do better", and I didn't feel like there were any real stakes in any combat encounter. So all that's left is miring the art, and even that deteriorated a little as the chapters went by (I mean just look at that action figure physique).