A game of orders of magnitude
Combien ça coûte ?
Guess what public projects really cost, from a presidential flight to a cathedral, then see the audited price.
Play in your browserFree · nothing to download · in French
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Real, audited prices
Over 200 questions, each from a public source: half of them from the Cour des comptes.
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Orders of magnitude
One scale from a thousand to ten billion euros. Getting the right decade already counts.
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A new challenge every day
Three questions, the same for everyone. Send a friend a duel, or keep playing freely.