666 Slot Review & Free Play

666: Match Chinese Characters For up to 6,660x Wins

666 might sound like a horror-themed slot, but it’s actually inspired by ancient China and symbols of luck. Aspect Gaming makes the gameplay more interesting by adding free spins and cascading wins. It also offers a solid 6,660x max win.

The 6x6 grid in 666 surprised me because only 24 positions unlock at the start of each round. I unlocked other positions by landing winning combinations, which occurred quite frequently. With clusters and cascades in play, I landed a win roughly every second or third spin.

My base-game wins were usually modest. The listed regular-symbol payouts also looked tiny, starting at 0.02x the bet for coins and bells, while the most valuable symbol, the gold ingot, offered 0.2x.

Even though many winning rounds included two or more cascades that unlocked extra positions, most payouts didn’t exceed my stake.

My biggest base-game win came after four minutes of play, when seven cascades brought me 5.8x my bet. That sequence also triggered free spins, since you need five cascades. 

I really enjoyed the free spins, though I only got three. All positions were unlocked during the round, and the win multiplier started at 3x and increased by 1x with each cascade, up to 7x.

Each spin lasted a relatively long time because new winning combinations kept popping up after cascades. One paid over 30x my bet, and the round ended with a total payout of 42.26x.

After that, the game kept delivering fairly frequent base-game payouts, but they weren’t enough to keep my balance up. Once it fell back to its starting amount, I decided to stop playing.

Overall, 666 provided a decent experience. I enjoyed the frequent wins, though their low value was frustrating. The free-spins round was generous during my session, so I’d suggest giving it a try if you enjoy cascades and increasing multipliers and you’re okay with small base-game payouts.