Designing games for spectator betting requires a blend of engaging gameplay, real-time interaction, and seamless betting mechanics. Here are the most effective strategies:

1. Live Streaming Integration: Ensure the game supports high-quality live streaming platforms like Twitch or YouTube Gaming. This allows spectators to watch and bet in real-time.

2. Interactive Betting Mechanics: Incorporate intuitive betting interfaces where spectators can place bets on in-game events, such as player performance or match outcomes.

3. Transparent Odds and Payouts: Display clear odds and potential payouts to build trust and encourage participation.

4. Engaging Visuals and UI: Use dynamic visuals and a user-friendly interface to make betting easy and exciting.

5. Community Features: Add chat systems or leaderboards to foster interaction among spectators and players.

By focusing on these elements, game designers can create compelling experiences that attract and retain spectator bettors.