Party Games
Spin the bottle has no official rulebook, just decades of house rules layered on top of one simple mechanic. Here's how groups actually run it today.
Players sit in a circle with a bottle on the floor or table at the center. Each turn, one player spins it and waits for it to stop.
Whoever the bottle points at when it stops is the target of that round, whatever the group's chosen forfeit is.
That's the entire mechanic. Everything else, group size, what happens when it stops, whether you go again, is a house rule layered on top.

Three is the practical minimum. Below that there's no real "pointing at someone" mechanic left.
Most groups play comfortably with 4 to 12 people in a circle; past that, spins take longer to reach everyone and turns thin out.
A digital version removes the floor-space limit entirely. Wheelofnames.io's Spin the Bottle tool supports up to 20 named players, or works with none added at all for a two-person game.
A physical bottle has two recurring problems. It rolls off a table on carpet or an uneven surface.
And a slow, ambiguous stop invites arguments about who it "really" landed on.
A screen-based spin resolves both. The wheel holds still, the bottle spins and stops cleanly, and the group watches the same result at the same time.
That's also what removes the need for a physical bottle at all: any bottle image works, including one you upload yourself.
Ready to try it yourself?
Open the tool