Advanced Game Mechanics in Online Slots at Non GamStop Casinos
By Muhammad Arslan Saleem September 17, 2025 09:19
Game developers are launching online slots with new ways to play. By introducing new game mechanics into online slots, developers hope to differentiate themselves, offering variety through table games not bound by GamStop restrictions as well. Sometimes this leads to a complete craze, such as the flood of slots with cascading symbols after Gonzo's Quest or the Megaways that became extremely popular after Bonanza.
Game mechanics in online slots
Besides these now-established slot features, there are now several advanced game mechanics that provide an innovative way to play at non GamStop casinos. Below, you'll find some of the most important game mechanics in online slots, along with examples of slots. So the next time you visit a reliable online casino, you'll know exactly what to look for.
Megaquads
Developer Big Time Gaming was previously responsible for the incredibly popular Megaways and the first Bonus Buy at non GamStop casinos. Following the success of Megaways, the company has since tried to emulate that success. With games like Megaclusters and Megapays, the same principle from Megaways was reimagined, but Megaquads truly offers a new way to play.
In Megaquads slots, you play on four reels simultaneously. This isn't innovative in itself, as this idea already appears in older games. What makes Megaquads slots unique is that the four fields can also interact, creating 16,777,216 paylines – almost 17 million ways to win. Moreover, Megaquads slots often work with a multiplier, so all those ways to win are even more rewarding.
For now, the Megaquads mechanism is only used in slots from Big Time Gaming, such as Slot Vegas and a special version of that same slot: Slot Vegas Fully Loaded.
Infinireels
As is often the case with slot mechanics at non GamStop casinos, Infinireels goes by several names. Because NetEnt was the first to patent this gameplay, we're keeping their name. Infinireels were first introduced in 2020 with the Gods of Gold Infinireels slot. This slot was an attempt to match the popularity of Megaways. It didn't succeed, but Infinireels are now a fixture in many casino lobbying circles.
The principle behind Infinireels is that a playing field can continue to grow until it reaches an infinite number. You start with a standard playing field with 243 ways to win. This means you always win if the same symbol appears on consecutive reels. In Infinireels slots, an additional reel is added to the playing field after each winning combination. If that new reel also has a winning symbol, the new combinations are calculated, and this principle repeats. This way, a winning spin can theoretically continue indefinitely.
So far, Infinireels hasn't proven popular enough to sell the license. Only its younger sibling, Red Tiger (from the same parent company), has created a similar game, Get the Gold Infinireels.
Popwins
Popwins are an invention of developer Yggdrasil at non GamStop casinos. This provider started with themes like Vikings and circus clowns, but has since expanded to include new game mechanics. One of the most important mechanisms is Popwins, which was first introduced in Poprocks but has since been featured in various games from Yggdrasil (and related studios). Vault Fortune, Piggy Pop, and Lollipop are examples.
This is also a feature we've encountered before, in a similar form. With Popwins, symbols disappear from a combination with a single hit from the reels, only to be replaced by new symbols. Indeed, the same idea as in Reactoonz, for example. Popwins differ in that more symbols are replaced than have disappeared from the reels: each symbol that disappears makes way for two new symbols.
Gigablox
Gigablox are also an invention of developer Yggdrasil at non GamStop casinos. The first slots featuring Gigablox were released in 2020, around the same time as Popwins. Again, the idea of a large block isn't new, but Yggdrasil has devised an innovative way to integrate such a large block into slots like Gater Gold Gigablox and Lucky Neko Gigablox.
With Gigablox, you don't have to wait for a special bonus round or any other way to win extra. These extra-large symbols provide a chance to win on every spin. Landing such a large symbol immediately means a huge payout.
Hyperhold
Hyperhold is another mechanism that appears under several names. Studios affiliated with Microgaming use the name HyperHold, but you might also see the same mechanism as Hold & Spin ( Pragmatic Play ) or Lock it Link. HyperHold first appeared in a Microgaming game in Hypernova Megaways.
Whatever the name, the principle of HyperHold is always the same. In this bonus, you play with coins that represent a specific value. If there are enough of these coins in play, the special HyperHold bonus begins. You now have three re-spins to land at least one coin. If you succeed, the re-spins restart at three. If you fail, the value of all coins is determined.
xWays
NoLimit City has a reputation for controversial slots at non GamStop casinos. The infamous San Quentin xWays slot (about a prison with death row) kicked off a wave of very edgy slots, like Mental and Remember Gulag. However, NoLimit City has more to offer than just provocative slots: xWays, for example.
NoLimit City slots typically have a variable number of paylines, with a combination formed when a symbol appears anywhere on the first three consecutive reels. With xWays, some symbols create double paylines by splitting one symbol into multiple symbols. Especially when this occurs on multiple reels, the number of potential paylines can increase dramatically. Besides the San Quentin slot, xWays Hoarder xSplit is a well-known slot with xWays.
xNudge
The xNudge also comes from NoLimit City. The nudge is likely a familiar feature, where a reel can shift slightly to lead to a better outcome. The xNudge does much the same thing, but for every position a wild (because that's what it's always about) shifts to fill the entire reel, a factor is added to the multiplier. A wild that shifts two places goes from having no multiplier in two steps to a 3x multiplier.
If you'd like to try this mechanic, play Bushido Ways xNudge or El Paso Gunfight xNudge.
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