A gamified user onboarding experience involves setting challenges, milestones, and rewards to motivate users. This approach can boost engagement and retention rates by leveraging the competitive nature of users. Key tactics include progress bars, badges and awards, leaderboards and streaks, in-app prompts and challenges, levels, redeemable awards, and storytelling tactics like The Hero's Journey. It is crucial to evaluate whether gamification suits your product before implementing it. Gamification can be achieved through various motivational factors such as extrinsic or intrinsic rewards.