When you are ready to start playing a single player, co-op or multiplayer game, this is the place to do it.

In order to host a game you must fill in the following fields and click the Create Game button.

Game Name: The name that will be displayed for people to find your game.
Port: Default 25001
Please note that PORT FORWARDING IS REQUIRED to host a game.
Maximum Players: Between 8 and 10

Optionally before creating the game, you can secure your game with Password. Simply check the Use Password box to create two new fields. One will be for your password of choice, the other is to confirm the password by typing it once again.

NOTE ON PORT FORWARDING: You may need to contact your internet provider, or search google for help with port forwarding based on what modem or router you use. Some people are afraid of port forwarding but it's much easier than you think.