While Habitica offers numerous ways to challenge players, such as achievements, quests, and...
http://habitica.wikia.com/wiki/Self-Imposed_Challenges
* achievements * quests * challenges * gold * Orb of Rebirth * Level * Perfect Day Buffs * attribute points * Hide Reward Items * equipment * health potions * equipment * Reward * health potions * spooky sparkles * To-Do * Daily * re-title * level up * challenge * Tavern * Hard Mode * Habit * Fix Character Values * health * die * color of the task * custom Rewards * armor, weapons * pets * gold * Reward * egg * potion * sell * Inn * equipment * Habit * Fix Character Values * settings * death * settings * Fix Character Values * Healer * Boss * health * Fix Character Values * settings * settings * gold * level * gamify * example * Challenges * Hard Mode guild * Tavern * Hardcore challenge : "You Are Poisoned ! +" * release your stable * delete or reset * death mechanic * random.org * "Chance-Based Task Completion/Failure Outcomes" challenge * "📜 Library of Tasks and Challenges" guild * pet * mount * example * Beast Master * Mount Master * hedgehog * unicorn * gryphon * gems * eggs * Triad Bingo * Triad Bingo * Key to the Kennels * achievements * Hide Reward Items * Health Potions