Demo slots let players spin the reels for 10 to 20 times and determine how many winning combinations they can land. They can also help avoid financial losses and improve their game-playing skills. Free slots can also help novice players or players who aren't experienced practice winning strategies.

Many online casinos offer a "Play for Fun" or "Demo" mode that allows users to try out slot games without risking real money. In demo mode, you use virtual credits provided by the casino to play the games.