Sweet Bonanza is a popular online slot game developed by Pragmatic Play. If you're looking to play it for free, many online casinos offer a demo version. You can visit the website of a reputable online casino, navigate to their slots section, and look for Sweet Bonanza. Most of these sites will have a "Play for Fun" or "Demo" option that allows you to try the game without wagering real money. Enjoy spinning those reels!