Crazy Defense Heroes is an Animoca Brands-backed, free-to-play, and play-to-earn tower defense game with collectible cards. You defend your kingdom against a wave of monsters while developing and customizing your tower defense strategy using spells, heroes, and equipment cards. You can also partake in weekly challenges and create clans for Clan Quest Leagues. You can claim $TOWER tokens, Crazy Defense Heroes' in-game tokens, when you complete stages, earn stars, and open Star Chests. You can also earn $TOWER tokens from a monthly reward pool. The amount of $TOWER tokens you get from the reward pool depends on the Experience Points (XP) you gain each month.