Designing games for physical exertion requires a balance of fun, engagement, and physical activity. Here are the most effective strategies:

1. Incorporate Full-Body Movement: Games should encourage players to use their entire body, such as jumping, running, or stretching, to maximize exertion.

2. Use Real-Time Feedback: Immediate feedback, like visual or auditory cues, motivates players to push their limits and stay engaged.

3. Gamify Exercise Goals: Turn fitness milestones into in-game achievements, rewarding players for completing challenges or reaching targets.

4. Design for Accessibility: Ensure games are adaptable to different fitness levels, allowing players to customize intensity.

5. Leverage Social Competition: Multiplayer modes or leaderboards foster motivation through friendly competition.

By blending these elements, designers can create games that make physical exertion enjoyable and effective.