What's the basic "unit" of RPG play? I'd call it this little exchange or interaction:
1. Something – some event, stimulus, something – happens.
2. Players weigh the likely consequences of that something, and state how they respond.
3. Based on the that interaction, the holy trio (GM, Players, and Game Rules) determine the outcome.
And from that little procedure, you build a scene, a session, even a campaign – it just depends on how many times you rinse and repeat.
There is in GURPS one small, wacky, but mostly harmless exception to this core unit. Read more...