I love Neurocity. It's got a very detailed world, which has several backstories which you can choose or roll to make each game unique. It's got robust tools for plot hooks as well as a full set of pregens, which is a personal favorite of mine. The ruleset is very OSR. It's the best way of dealing with player death I've seen, you're not allowed to die. It's Paranoia meets1984 meets Shadowrun. 5 Stars.