Almost every day seems to bring new types of slot machines, whether in game themes or designs, or the types of opportunities and combinations they offer for you to play and possibly win. Nevertheless, most can be divided into several basic categories, listed here alphabetically for your ease of reference. Note that some slot machines fall into more than one category.

• Bonus Multiplier: A Multiplier machine (see below) in which possible winnings grow proportionally with the amount you bet.
• Five Reel: A slot machine in which five different reels spin with each play.
• Multi-Line: A slot machine that pays on more than just the center line, offering top, bottom, diagonal lines and other combinations of symbols across the reels that may be activated by depositing extra bets per play.
• Multiplier: A slot machine that allows you the option of betting more than one coin at a time.
• Progressive: A slot machine on which the potential jackpot grows progressively greater as more people play on other machines with which it is linked.
• Straight: A slot machine on which the pay table is fixed rather than Progressive (see above).
• Three Reel: A slot machine in which three different reels spin with each play.
• Video: A slot machine in which the moving reels appear as a simulated display on a video screen or touch screen.
• Virtual: Like a Video machine (see above), this offers a brilliant full-color simulation of an actual slot machine in an online casino.