By definition, loyalty is expressed when a consumer chooses your product/service when other options are mostly equal. It’s a form of incremental affection whose balance can be easily disturbed. A new way of thinking about loyalty is in the framework of gamification. After all, if loyalty is about driving incremental user action in a crowded environment, gamification is able to do that and deliver viral user growth, improved satisfaction, and revenue. Here are five ways to develop loyalty, based on some of the principles of gamification.