There are quite a few websites and apps where you can play Vegas-style slots for free. Some popular ones include:
1. **Slotomania**: A well-known app with a variety of slot games.
2. **House of Fun**: Offers a wide range of free slot games.
3. **Caesars Slots**: Features games inspired by the famous Caesars Palace in Las Vegas.
4. **Double Down Casino**: Provides a mix of slot games and other casino games.
5. **Heart of Vegas**: Known for its authentic slot game experience.
You can find these apps on both the App Store and Google Play Store, or you can play directly on their websites. Enjoy spinning those reels!