|It could be made to wrok but it would be messy and complcated and not worth the effort.|
If you want a LAN party the simplest and correct colution would be to use a switch, not a router. Routers of for connecting two networks together. Switches are for conncting computers together in order to make a network.
Switch can be bought with four, six, eight ports and more and are not very expensive for what you need and a lot cheaper than a router.