--Gauge interest in the game first: Before you do anything else, you should figure out if you would even have enough people for a game night. Four is generally a good number, because you can have full lobbies in co-op friendly games like Left 4 Dead, Halo, or Castle Crashers

--Choose a date at least a week away to give everyone plenty of notice. This gives users the time to work the game night into their schedule to find the time to attend.

--Weekends are best for ensuring maximum turnout.

--I find that 8pm EST is a good default starting time.

--Be vigilant! Bump the thread at least once a day until the event starts, to keep it near the top of the board and to make sure nobody forgets about it. This step is super important.

--Be wary of time zones: Sep7agon has users in various parts of the globe, so when announcing the time, be sure to mention a time zone, too. Furthermore, it may help to choose a time that allows users from across the pond to play at a reasonable hour. It doesn't have to be at night!

--To help ensure a good turnout, keep a list of attendees so you can send invites when the event starts. Also, many of our users are on Steam, so scheduling the event on the group's calendar can be a smart reminder when the time comes.

--Finally, keep in mind that usually not everybody on the list of attendees will be able to make it, because stuff happens and things change. Don't take it personally.

--And of course: have fun with it!