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Playing the Prisoner's Dilemma with your family

Every Saturday, my family have a pub quiz over Zoom. [A pub quiz is a quiz held in a pub or bar.]

The teams are usually:

Me and Lauren.
My mum and step-dad.
My brother and his wife.
My brother's wife's parents.
My sister, her partner and their two children.
My other sister and her boyfriend.
My other other sister and her boyfriend.

Each team Zooms in from their bunker. Each team makes up a round of five questions.

This week, our round was a bit different.

Alice and Bob are arrested for murder and held at the police station.

If Alice blames it on Bob and Bob says nothing, Alice gets off and Bob goes to prison for a long time (3 years).
If Bob blames it on Alice and Alice says nothing, Bob gets off and Alice goes to prison for a long time (3 years).
If they both blame each other, they both go to prison for a medium length of time (2 years).
If they both say nothing, they both go to prison for a short length of time (1 year).

Each team played a round of Prisoner's Dilemma against each other team. For example: My brother and his wife played against my mum and step-dad. On the count of three, the two teams did a thumbs-up if they wanted to say nothing, or a thumbs-down if they wanted to blame the other team. Then, depending on what the teams did, each would get some number of years in prison between 0 and 3.

Every team played against every other team. Pub quiz points were awarded based on a team's total years in prison across all the rounds they'd played.

One thing I learnt was that my other other sister and her boyfriend are total saints. They only blamed the other team once out of five rounds. Whereas my mum and step-dad, well, I won't say any more.

I created an Airtable base that made running the game super easy. It explained the game, assigned years in prison for each round and summed the total years in prison.

https://airtable.com/shrCR87qMRLKjLhuO

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