The original was recommended to me by a friend, and I enjoyed it enough to pick up the sequel, but after reading it I can see why she didn't bother to recommend this one too.

From the title you would guess that this is about the engineers of Ringworld, but in actuality the entire thing is about alien sex. Okay, maybe that's an exaggeration, but only a slight one. There is a plot, but it's strung together and ultimately overshadowed by Louis running from place to place in order to have sex with aliens.

Disappointing and somewhat sad to see an author run his most well-known creation into the ground like this, presumably just to make a few extra bucks. This is one of those cases where it would have been better to just leave the original to stand alone.

Exellent follow up to Ringworld. Worn out my original, just had to get another copy.

I read this in a couple of days just because I had nothing else to do. I enjoyed it, but I enjoyed Ringworld more. The ending was wrapped up pretty quickly, like Niven was tired of writing about the Ringworld and just wanted to get it over with. That's not necessarily a bad thing, because I was tired of reading about the Ringworld at this point. I should have put a buffer between Ringworld and Ringworld Engineers by reading another book, perhaps something from the Ender Wiggin series. I still recommend Ringworld Engineers if you enjoyed Ringworld as it answers numerous questions you may or may not have had. After reading Ringworld and Ringworld Engineers, I think I'm going to pick up a few more novels by Niven.