Local small business, the kind every community has, are tired of seeing their sales slip to Amazon, eBay, and every other e-commerce site. They see other stores "Going Out Of Business" signs and mass retailers heading to bankruptcy, and are just plain feeling the squeeze. Through gamification, we can help change that making it fun, exciting, and rewarding in the process. Mystery on Main Street (MoMS) is a new interactive “whodunit” game for mobile phones made freely available to the public and downloadable through the Apple App Store and Google Play. In each “gameplay”, the application takes players from location to location to receive clues and solve a mystery while promoting local merchants (e.g.: storefront retailers, restaurants, bookshops, events, entertainment centers) by encouraging the player who must browse these locations as a core function of completing the game. Participating locations are viewable worldwide within the app’s map but the clue is only viewable within the location, and only within a small window of time. This motivates impulse buying and return shopping. The first player to solve the mystery receives a valuable prize. Gameplays can be engineered to continue for a determined time. The storylines are fictional and never based on actual circumstances. Think of this as Groupon meets scavenger hunt and Pokémon Go, but players and participating merchants mutually gain with no membership or subscription required.