Gameplay is a term that's extremely important when it comes to online slots, and that's definitely the case with NetEnt's Sparks online slot. This game uses a sort of combination space and futuristic theme with attractive graphics and a soothing soundtrack. The game can be played with wins only left-to-right or wins that play both ways. The payouts double when you play only left-to-right to keep things fair, but we're going to cover the both ways payouts because that seems to be what everyone wants to play. It also offers a lower volatility experience overall than playing left-to-right only.

Format and Layout

The format for this game is pretty standard. It uses five reels with three rows, and there are a total of 20 paylines. This is effectively 40 paylines when you play with both ways, and even though you're still only playing for 20 coins, the payouts are cut in half to compensate and make things fair. Coins go from $0.01 to $2.00 apiece, and you can bet up to 10 coins on each payline. Players only need to spend a minimum of $0.20 per spin in Sparks, so it's attractive for players at all stakes.

The Key Gameplay

Gameplay in Sparks is driven primarily by the wild symbols, which are silver. The regular wilds can show up on all reels, and it behaves like a typical wild would. However, there are also expanding cloning wilds that drive the main gameplay, and they show up on the second and fourth reels only. When you get one of these golden expanding cloning wilds, they have a chance to expand in each vertical direction (though they won't always).

Once the vertical expansion is decided, all of them on the screen will take the symbol that's to the left of them and duplicate it to the right. This lines symbols up for you in a way that will drastically increase your chances of winning and hitting multi-line wins.


Five wilds will give you a 200x payout with both ways activated. You can also get 75x for four of them and 20x for three. The red spark symbol also gives 200x for five of a kind, and you can also earn 175x for five of the orange spark, 150x for five of the green, 125x for five of the purple and 100x for five of the blue.

Minor payouts are also available for the A, K, Q, J and 10 symbols. All of the symbols are stylized for the game, and they all pay for three of a kind or more.