Check out Fatal Twelve if you find it interesting. The premise is pretty overdone (death game.. ish), but a lot of things are actually very well executed in this VN. I was pleasantly surprised, although in my opinion the charm wears off during the latter half, where everything amounts to melodrama that, depending on your tastes, may or may not feel bloated. The ending is kind of predictable, and the whole motif just goes poof, but it's still a wild ride. It has its flaws, but I found it enjoyable nonetheless because it's just sheer fun. So, I'd recommend it.
I can recommend more, if anyone's interested. And I'd also like to hear some suggestions too!