The first movie was very simple, about surviving in an unknown planet by avoiding the attacks of the alien creatures. But the second movie was totally different with broad in story expansion about humans and human like creature's invasion of different planets of the universe. So this third Riddick movie was very much similar to the first which had very lesser characters. If you ever liked the first, probably you will like this as well.
You keep what you kill, so Riddick becomes the new Lord Marshall of the Necromonger. But he's far more away from their faith, so he makes a deal with the commander Vaako. But the deal goes wrong when he was escorted to a wrong planet. Once again, Riddick finds the threats from alien animals from the planet where he is stranded. On the other side, the bounty hunters trouble him, but he must fight to get one of their ships to sail to the planet Furya. Would he succeed or not is the story briefs in the remains.
As the per the entertainment prospect this movie was very good. It had great stunts and graphics. As usual the Vin diesel was breathtaking as Riddick. But if you are expecting a story to continue from where the second installment ended you will be sadden. Actually the story follows from the second, but the theme flips back to similar to the first. For me it was a well made movie in the series to fit in and as the third. Those who are disappointed will be brightened up in the next follow up movie for sure. So I believe it is not for everyone, except those who seek a good entertainment.
7/10