https://tontine.cash/ is a MSCHF game. On 2021-12-27, 7141 players each paid $10 into a central pot and have been required to check in at least once a day by midnight EST/EDT or else be eliminated. The last remaining player will win the pot. As of 2023-8-31, 378 players remain.

The market resolves to the choice whose corresponding year includes the first day on which the living count is 100 or less, and resolves at 12:05 AM EST on that day or as soon as possible after that. "Other" will be used to extend closing dates if the population is still above 100 at the default closing date, which is 2030-1-1. It resolves to to N/A if the game is canceled for any reason.

Tontine

Tontine: everybody buys in, and the last person alive takes the pot. Log in every day to confirm you’re still alive.