Gamification offers a powerful way to engage users in the competitive world of Web3 apps, driving retention, and differentiation. However, achieving long-term sustainability requires finding the right balance between fun mechanics and economic stability. By aligning incentives with real utility, implementing progressive reward systems, controlling token emission, introducing risk-reward options, and ensuring transparency against fraud, developers can create systems that foster both user enjoyment and sustained value. This article explores how Cheelee, a SocialFi short-video platform, balances gamification for lasting engagement while promoting economic viability.