Fact: anyone who loves playing slots wants to see as many Wild symbols as possible. This joker symbol that has the power to take the place of any of the regular symbols often performs additional tricks, the most appreciated one probably being Stacked wilds.
If, like us, you know that stacked wilds can help you win more, read on to find out which are the best stacked wild slots.
Top 10 Stacked Wild Slots in 2021
#10. The Great Blue
Play The Great Blue at William Hill Casino
Visually quite simple (which is exactly how some people prefer it), this Playtech slot plays across 5 reels and 25 paylines.
The wild whale will cash out as much as 10,000 coins if you manage to catch 5 simultaneously, and it will double the prize each time it contributes to the winning combo. A scattered shell launches a bonus round with a pick-and-click affair, adding free spins and increasing the multiplier to up to x15. What’s more, you can re-trigger features and get awarded additional spins infinitely.
See how many you can score at William Hill or Mansion Casino.
#9. Cosmic Invaders
Play Cosmic Invaders at Videoslots Casino
An intergalactic adventure awaits you in this space-themed video slot from 2×2 Gaming.
With each of your spins, spaceships hovering above the reels might drop stacked Wild symbols on reels 2, 3 and/or 4. Scattered UFOs trigger an Alien Picking Bonus round in which you’ll be picking among aliens to win a cash prize or an extra pick. Cosmic free spins come with one of the reels going totally wild.
If you fancy a trip into the unknown with this retro-looking game, give it a try at Videoslots, Casino Cruise or SpinIt.
#8. Dolphin Quest
Play Dolphin Quest at Race Casino
Guess where this Microgaming slot featuring stacked Wilds takes you! Under the sea, of course!
On top of your regular substitute, assistance is provided by Scatters that also act as Wilds in addition to triggering the Dolphin Quest Bonus. You’ll get to play a mini game featuring a 3-reel slot which can cash out between 50 and 3,000 coins. There’s a juicy 12,500-coin jackpot to be won during the main game and an even more tempting 150,000-coin one to be collected in the bonus game.
Want to know where? At Race casino.
#7. Royal Masquerade
Play Royal Masquerade at SpinIt Casino
If you’ve never been to Venice, you might want to consider a visit before this unique Italian city sinks into the Adriatic Sea.
Meanwhile, try to collect 500,000 coins while you’re in the virtual alternative provided by Play ‘n Go. While the hook-nosed icon plays the role of a substitute and lands stacked, Scatters will dish out up to 20 free spins with a guaranteed win on each of them.
Experience the unique atmosphere of Carnevale di Venezia by visiting SpinIt, Casino Luck or Casino Cruise.
#6. Medusa 2
Play Medusa 2 at NetBet Casino
Wasn’t Medusa supposed to be an ugly monster with hideous snakes for hair? NextGen must be unacquainted with Greek mythology because they’ve made their Medusa absolutely gorgeous, with nothing to fear. In fact, she’ll appear stacked and randomly lock the reels to display identical symbols in adjacent positions. A soldier will on occasion try to attack her, only to be turned to stone and reveal a stack of Wild icons.
Experience a different take on the mythical Gorgon at NetBet, Miami Dice or Spin Station.
#5. Space Wars
Play Space Wars at Casino Lab
All symbols in this lovely NetEnt game come stacked to help you score a win, including the Wilds which appear on reels 2 and 4.
When you manage to form a winning combo, the participating symbols will be teleported to the Cloning Pod, which clones them and throws them back onto the reels while granting a free re-spin. There’s not zillions of features here, but hey, under the right conditions simple can be very appealing – as is the case with this game.
You can win as much as 400,000 coins by joining space wars at Casino Lab.
#4. Flux
Play Flux at Miami Dice Casino
This futuristic Thunderkick slot delivers a slightly different experience.
Brightly coloured geometrical shapes float suspended in mid-air, with the yellow W acting as a substitute and always appearing stacked. Scatters take you to the bonus round, in which you’ll be given 3 options. One offers you to spin for free while winning both ways, the second awards fewer free games but plays with 3 extra rows, and the third combines the two extras with the smallest number of spins.
Take your pick at Miami Dice, Leo Vegas or Mr Green.
#3. Double Dragons
Play Double Dragons at Casino Joy
What a great job Yggdrasil has done with their Double Dragons slot!
This beautifully-designed game features cascading reels and dragon heads which function as special Wild icons, either converting 2 to 3 regular symbols into Wilds or doubling the drop-down win. Collecting the heads wins you free spins that offer a shortcut to the Double Dragons feature, normally activated by 4 consecutive wins. This feature adds 2 high-stack Wilds as many as 28 symbols long – nice!
Make sure to turn the speakers on to enjoy the fantastic musical background as you play the game at Casino Joy.
Also, check out our collection of dragon slots that you might enjoy!
#2. Jurassic Park
Play Jurassic Park at Casino Lab
Based on the movie featuring extinct dynos brought back to life (bad, bad decision), this 243 ways-to-win Microgaming slot offers you the chance to collect as many as 475,000 credits.
Scatters trigger 25 free spins, after which you’ll get 12 more combined with a feature of your choice:
- Wild reels
- Multiplier Wilds and Split Wilds (and potentially a 6-of-a-kind win as a result!)
- Running Wilds where Wild stacks grow with each free spin
- A mystery Multiplier
- Winning Wilds
A T-Rex sighting activates the T-Rex Alert mode which adds 35 extra Wild icons to the reels for the next 6 paid spins. Meanwhile, a Wild game logo comes stacked on all reels.
You can travel millions of years back in time at Casino Lab or Genesis.
#1. The Three Musketeers
Play The Three Musketeers at Spin It Casino
Quickspin has built their slots around the heroes of a famous historical novel set in 17th century France.
The brave adventurers are presented with cartoon-style visuals, each occupying an entire reel, same as the Wild jester. Bonus symbols triple the prize and activate free spins, with all musketeers substituting for each other in All for One pays. Stacked Wilds will nudge up or down to improve the spin outcome, and each full-stack Wild participating in a win multiplies the award by up to x4.
Go see what Athos, Porthos and Aramis are up to at Spin It casino or Genesis.
If you want to explore more casinos, check out our list of the top 20 UK online casinos!
What Are Stacked Wild Slots?
Just like any other type of wild, stacked wilds act as a kind of “joker” that can substitute any other icons on the reel to complete a winning line.
What’s special about stacked wilds specifically, though, is that they usually come in pairs of 2, 3, 4, or 5 symbols that can even cover an entire reel when they drop! For the players this means way bigger winnings compared to regular wilds because you can potentially get multiple payouts with just a single spin.
This is why stacked wild slots are such a popular choice when it comes to slots. Who can resist the possibility of such an advantage?
How Do Stacked Wilds Work?
Now that we know what they do, you might be wondering how exactly stacked wilds work?
Well, it’s actually pretty simple. Stacked wilds function in a similar way to expanding wilds in that they can expand to cover the whole reel. However, unlike expanding wilds, stacked wilds are single symbols that get dropped.
How much of the reel or which portions can get covered by stacked slots can vary from game to game and depends on individual rules. It could be the whole reel or just the bottom section.
Keep in mind that you can always check these rules in the paytable of any given game. Just look for a button that indicates “paytable”, “menu”, “info”, or something else along the same lines.
7 Other Popular Types of Slots
If you like the sound of stacked wilds, check these other types of slots. Each one comes with its own unique set of advantages and features we’re sure you’ll love!
#.1 Low Stakes Slots
Otherwise known as penny slots, low bet, or low balance slots, low stakes slots are a type of slot game that has a very flexible lower betting range, sometimes starting as low as £0.01.
This is perfect for both beginner and experienced players who want to enjoy long sessions of slot gameplay while still getting consistent payouts and having a chance of hitting the jackpot.
#2. High Stakes Slots
If you can place super low bets with low-stakes slots, high-stakes slots allow you to make BIG wagers. You can usually bet as much as £300 per spin with these super fast-paced games.
High-stakes slots are usually played by high rollers who love the thrill of taking big risks with large amounts of cash!
#3. Sticky Wild Slots
Wild cards are always a welcome sight for slot players. Unfortunately, they usually make super brief appearances. That’s not the case with sticky wild slots, though.
These games feature wilds that stick around for several spins, giving you way more chances to score payouts than the average slot game.
#4. Tumbling Reel Slots
Tumbling reel slots are still a relatively new but popular type of slot. Also known as rolling reels, cascading reels, falling symbols, or avalanche slots, these slots have a super cool feature that allows you to get multiple payouts with just a single spin.
Once you get a winning combination on a tumbling reel slot game, the winning symbols either disappear, explode, or crumble away, leaving space for new symbols which drop down to take their place. This process continues as long as you keep getting winning combinations with the new symbols.
#5. High Payout Slots
If you’re looking to win big on slots, high payout slots are probably your best bet. These have the highest Return To Player (RTP) percentage, giving you the best probabilities to get payouts.
With so much competition between casinos, high RTP percentages are often used to attract more players, so you can always find these advantageous machines at most casinos. The best casinos offer slots with RTPs as high as 99.7%!
#6. Win Both Ways Slots
With win both ways slots you can make winning combinations by moving either way on the reels, which doubles your chances of getting a payout!
This one is perfect for players who get easily frustrated when the symbols don’t quite match up.
#7. Progressive Jackpot Slots
One of the most popular types of slots, progressive jackpot slots attract players with their massive jackpots.
For this type of slot, there is no single jackpot per machine. Instead, there is one huge jackpot with around 10% of every wager being collected from all of the machines taking part in the progressive jackpot. This means that you could potentially win way more than what a regular slot machine could offer.
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Rachel Pine
Slots Expert
Rachel Pine is our slots expert who has worked in the online gambling industry for 10+ years. Over the course of her career, Rachel has reviewed more than 3,000 slots.