In my experience, you're better off picking up the odd one-shot when you can, hopefully with more or less the same people. (I find it's more or less the same 15-20 people I get when playing in or running one-shots.) You don't want to be the guy that nobody can ever rely upon (through no fault of your own). That guy gets spoken of badly when he doesn't make it, especially if it drops the core group down to a size that makes the game more difficult or untenable. Plus, the Endless Scheduling Conversation gets a bit tedious. That's put me off running games for groups more than once. You know what I'm talking about - you talk about when to game more than actually gaming . That was a "feature" of my old home group back in the United States. It's tough, man. Sometimes traditional "ongoing" games need to take a backseat to life. I find it's best to pick up a game that works best as a pick-up (e.g., Fiasco) or treat an existing game you know as such (like D&D, but completely episodic and self-contained sessions).