- compete by "harvesting souls" of others who check into nearby locations via Facebook
- app is free
- only available in the U.S. and Canada
- unlock a number of rewards
- rewards include an in-game weapon, the first issue of the Darksiders digital comic, mobile backgrounds, and footage from the game
- daily prizes, including a full-sized replica Death scythe
- winners are entered into a grand prize drawing for a trip to the Yucatan Peninsula