Reaction Link is a slot game released by Playtech in January 2025. On any spin, you could win cash prizes of up to 1,160x your bet in the base game and Free Games feature. As you spin the reels, you could unlock extra rows and expand the playing area to activate up to 60 paylines. Keep reading our Reaction Link review for more on this dynamic classic-themed slot.



When you launch Reaction Link, you’ll start playing on a 5x3 grid with 20 paylines. But you can expand the playing area during the Free Games round, which gives you more chances to win on each spin. I’ll come back to this later in my review.
To win prizes, you need to match at least three identical symbols on any active payline. However, the high volatility can make payouts less common than they would be in less volatile slot games. The theoretical RTP is lower than the industry average, too. At 95.40%, the RTP may be an issue if you prefer slots with an RTP of 96% or higher.
Reaction Link’s top prize is also on the low side at just 1,160x your bet. You can expect to see much bigger prizes on offer in countless other slots.
Reaction Link is available at some of the best online casino in the UK. To help you find the right casino for you, here are the top slot sites hosting the game:
Reaction Link is a big, bright, and dynamic take on the classic slot theme. The background is alive with electric-blue lights, and the yellow reels stand out in the centre of the screen. The electronic music is just as energetic and vibrant as the graphics, too.
If you’ve played other classic-themed slots, you won’t be surprised by the symbols that land across the reels. You’ll see ‘7’ symbols, bells, BARs, lemons, oranges, cherries, plums, and grapes.
However, the symbol values are low across the board. If you land five ‘7’ symbols, you’ll win just 10x your bet — and this is the top prize on the paytable.
Special symbols, including Wilds and Coins, can hit on the reels during any spin, too. These can help you win cash prizes and trigger bonus features.

Cherries
3: 0.30x bet / 4: 0.50x bet / 5: 1x bet

Orange
3: 0.30x bet / 4: 0.60x bet / 5: 1.50x bet

Lemon
3: 0.50x bet / 4: 1x bet / 5: 2.50x bet

Grapes
3: 0.60x bet / 4: 1.50x bet / 5: 4x bet

Plum
3: 0.90x bet / 4: 1.80x bet / 5: 5x bet

Triple BAR
3: 1x bet / 4: 2x bet / 5: 6x bet

Bell
3: 1.50x bet / 4: 2.50x bet / 5: 7.50x bet

7
3: 2x bet / 4: 4x bet / 5: 10x bet
Reaction Link was developed in HTML5, so it’s compatible with most smartphones and tablets. Whether you use an iOS or Android device, you can play Reaction Link in a browser or a casino app. The game runs in landscape and portrait views, with adjustable controls to fit both orientations.



Reaction Link boasts a large Free Games feature that includes Mystery Coins, Diamond Coins awarding generous jackpots, and Spreader symbols.
The Wild symbol can hit on reels 2, 3, and 4. They substitute for all symbols except Arrows and Coins.
If a Green Arrow lands on an active reel, it unlocks up to three rows above the current playing area. The number shown on a Green Arrow indicates how many rows it unlocks. Each unlocked row adds 10 paylines, with a maximum of 60 paylines available.
Match six or more Coin symbols on active reels to win seven Free Games. All triggering Coins carry over into the bonus round, and more Coin symbols can land during the feature. If Coins land on locked reels, they freeze and activate only when their reel is unlocked.
To unlock the fourth, fifth, sixth, and seventh rows, you’ll need 8, 12, 16, and 22 active Coins, respectively. But 28 active Coins unlock the Recharge feature.
Once the Free Games feature ends, all active Coins (not those on locked reels) are collected.
Each Mystery Coin reveals its value at the end of the feature. This may be a cash prize or a Diamond prize.
Diamond Coins reveal a random Mini, Minor, Major, or Grand prize worth 10x, 25x, 100x, or 500x your bet, respectively.

A Spreader symbol may land in the Free Games feature. This symbol can spread as many as five extra Coin symbols on empty positions across locked and active reels. Spreaders also turn into Coin symbols.
A blue bonus symbol featuring a number may appear in the Free Games round. This symbol awards the corresponding number of free games.
Reaction Link is a striking take on classic slots, with an expanding playing area and a comprehensive Free Games feature. The Free Games feature is deep and implemented well, with various bonus symbols to help you win payouts. Unlocking new rows while you play adds extra value to the game, too.
This is an entertaining slot with Playtech’s usual polish. However, it also has a low max win, a below-average RTP, and high volatility, so payouts may be small and infrequent. I recommend that you try the Reaction Link free demo before you play the full game.
Rating: 6.5
Here are a few popular questions about this slot: