Responses
-Liar Game
-Tomodachi Game
-Tamarowa (but this is very sexual)
-Kamisama No Iutoori
-Real Account
-Imawa No Kuni No Alice
theres more here from my list:
http://www.mangago.me/home/mangalist/427823/

I didn't really mind the art since I didn't really care about it (though it does remind me of the art style from Liar Game).
The story is tailored in such a way that it focuses more on gore rather than to tell about interesting characters. The rules are so confusing and aren't made clear-cut beforehand that it makes for an unfair death galore rather than an actual death game, or well, in the terms that everyone has a fair chance of survival and death.
And don't even get me started with the characters. ┑( ̄Д  ̄)┍