This is a five-reel, 20-payline Slot that has traditional underpinnings, but the sheer off-the-wall story marks it out as a cut above the rest when it comes to 3D Casino Slots. And here are the best free 3D Slot machine games currently available to play online. Absolutely! There are so many amazing casinos online offering great free slot machines super 20 slot free right now. In fact, the hardest part is choosing which game to play first. If you're new to online slots check out our recommended slot casinos to get started. Since 3D graphics can be added to virtually any online slot game, you’ll find a lot of the same types of slot formats you’re already familiar with when browsing the 3D section of our online casino, including i-Slot, 50-line, 20-line, 25-line, payline-free, and progressive jackpot. We’ve provided examples of the 3D slots that fall into each of these six casino categories. You’ll notice that all of our online 3D slots have five reels.