I have a NetGear RT314 is there anyway to host a game through this router

You have to tell the router, through configuration software, to allow access to the port that the game uses (read the game's documentation).. You then assign an IP address to this port so that the data knows where to go inside your network.. The IP address should be the INTERNAL network IP address of the machine that is running the game server software.. You'll also want to make this machine's internal network IP address static so you don't have to change anything in the future..

Telnet to your Netgear's IP address using any standard telnet program and choose menu option 15 to do the above..

Hope this helps..