Empire Market is late, new and developing for the ceiling of tor network markets on the onion network.
It has practically all of it's fundamental features from now Alphabay. And calling itself a replacement of it.
The validity of It's links can be confirmable by using the deep web market’s own link-verifier page http://empiremarket-url.com/.
If URLs links are not working, here is the alternative mirrors where you can discover working deep web market mirrors http://empiremarket-url.com/