STEPN allows you to earn crypto from walking, jogging, and running. They’ve gamified fitness with a “Move to Earn” model (Play to Earn with extra steps) where the app is able to track your exercise similar to Strava or Map My Run, then reward you with crypto for completing activities.

The only way everyone keeps making money is if other people keep putting more money into the system, which either requires more people or deeper pockets from existing people.This is the metagame of STEPN: how long can you milk the magic money machine before it all comes crashing down? And can they fix their doom loop before it gets triggered?