I love the survival genre - here's all of the manga I've read that fit the bill, ordered from best to worst. Note that this list doesn't include death games, instead Anime-Planet's definition of...
Must read (This is a personal list, so I'll remove those entries I already started/ended)
A list of my favorite manga, I consider many of them as some of the most unusual and outstanding manga I've ever read.
Some of my favorite manga, in rough order.