Habitica

Habitica is a habit and task tracker that reframes productivity as a role-playing game. Users create a customizable avatar and earn experience points, gold, and items by completing habits, daily routines, and to-do items; missing tasks costs health, which gives everyday productivity real in-game stakes rather than a simple checkbox. Beyond individual tracking, Habitica supports party and guild systems where friends or communities take on quest bosses together, with everyone's real-world task completion feeding into the group's progress. It is aimed at people who respond better to game mechanics and social accountability than to traditional to-do apps, and it is available on the web and as native mobile apps.