Spin the bottle

Put your players in a circle, spin the bottle and see who it picks.

The bottle points at

How the spin is decided

The moment you click spin, the tool asks your browser's cryptographic random number generator (crypto.getRandomValues, the same machinery used to create encryption keys) to pick the result. Only then does the bottle start turning: it whirls through a few full rotations, slows with a natural ease-out and comes to rest pointing at the chosen player, always clearly inside their slice of the circle. Because the outcome is fixed before the first frame of animation, nothing you do changes the odds. Clicking at a lucky moment, spinning twice quickly or willing it round one more notch makes no difference at all.

You do not have to type any names. Spin with an empty list and the bottle simply stops at a random angle, shown in degrees measured clockwise from the top, which is exactly what you want when your players are sitting in a real circle around a phone or tablet on the table. Add names and the tool arranges them evenly around the bottle instead, then announces whoever it lands on, so there is never an argument about who it was really pointing at. Everything runs in your browser and the names are never uploaded anywhere.

chance the bottle picks any one player = 1 ÷ number of players

Worked examples

6 players in the circle
Each player occupies one sixth of the circle, so each has a 1 in 6 chance per spin, which is about 16.7%. The slices are always equal, however awkwardly your real-life sofa seating is arranged.
8 players, two spins in a row
The chance the second spin lands on the same person as the first is 1 in 8, which is 12.5%. It feels spooky when it happens, but with 8 players it will happen roughly one time in eight.
10 players, 5 spins, will you escape?
The chance of not being picked in any of 5 spins is (9/10)^5 = 0.59049, so about 59%. In other words there is roughly a 41% chance the bottle finds you at least once. Hiding behind the sofa does not change this.

Party games that start with a bottle

  • Who goes first: the fastest way to open any board game, quiz or karaoke night without the usual squabble.
  • Truth or forfeit: whoever the bottle picks answers a question honestly or does a harmless forfeit, sings a chorus, does ten star jumps, speaks in an accent for a round.
  • Compliment circle: the person the bottle picks gets a genuine compliment from the spinner. Surprisingly good fun and a lovely icebreaker for groups who have just met.
  • Story building: spin to choose who adds the next sentence to a group story. The randomness keeps quieter players involved.
  • Chores and choices: who makes the next round of tea, who picks the film, who has to answer the door for the takeaway.

Keeping it fun for everyone

Spin the bottle works best when the stakes are small and everyone opted in. Agree the rules and any forfeits before the first spin, keep dares kind and easy to refuse, and let anyone swap a dare for a truth without fuss. With mixed ages, stick to the sillier games above, all of which are safe for a family gathering. If you want a picker with more visual drama for prize draws, the wheel spinner shows every name on a spinning wheel and can remove each winner between rounds, and the yes or no tool settles simple either-or questions with a single click.

Frequently asked questions

Is the spin actually random?

Yes. The moment you click spin, your browser's cryptographic random number generator picks the result, and the bottle animation then slows to a stop on it. Timing your click, spinning harder or spinning again quickly makes no difference to the odds.

Do I have to add names?

No. With an empty list the bottle simply spins and stops at a random angle, shown in degrees, which works fine if your players are sitting in a real circle around the screen. Add names and the tool arranges them around the bottle and announces whoever it lands on.

How many players can I add?

Up to 20, which is about as many as fit legibly around the circle. Every player gets an equal slice of the circle, so the game stays fair however many you add.

Can the bottle land between two players?

No. The winner is chosen first and the bottle always comes to rest clearly inside that player's slice of the circle, and the name is announced in the result panel as well. There is nothing to argue about.

Are the names uploaded anywhere?

No. The circle is drawn and spun entirely in your browser, the names never leave your device, and refreshing the page clears them.

Related tools