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Variable reels · up to 117,649 ways · many studios · updated 24 September 2026

Megaways slots API: the mechanic, the studios and a collection that updates itself

Megaways is the slot mechanic players search for by name. How it works, what to check before featuring a title, and how to build a Megaways collection that keeps itself up to date.

In short. A Megaways slots API gives you the Megaways titles of many studios. At SoftAggregator they are slots in the game list; filter on the name to build a collection that updates itself, and settle every spin through your seamless wallet.

What is a Megaways slot?

Megaways is a reel mechanic, not a game. It was created by Big Time Gaming, an Australian studio, and first appeared in the slot Bonanza in 2016. On a Megaways slot, the number of symbols on each reel changes on every spin, typically between two and seven, so the number of ways to win changes too. With six reels of up to seven symbols, the maximum is 7 × 7 × 7 × 7 × 7 × 7 = 117,649 ways. Big Time Gaming went on to share the mechanic with many other studios, which is why “Megaways” now appears in the names of hundreds of slots.

For an operator, “Megaways API” really means: how do I get the Megaways titles players search for, and how do I present them as a collection? That is what this page answers. For slots in general, see our online slots API page; here we focus on the mechanic and on what it changes in your lobby.

How the mechanic works, spin by spin

  • Variable reel heights. Each of the six main reels shows a random number of symbols on every spin. The ways-to-win count on screen changes accordingly, and players watch it.
  • Ways, not lines. A win is any run of matching symbols on adjacent reels from the left, wherever they sit on each reel. More symbols per reel means more combinations.
  • The horizontal extra reel. Many Megaways games add a row above or below the main reels, sliding horizontally, which adds symbols to the middle reels.
  • Cascades. Most titles remove winning symbols and drop new ones in their place, so one paid spin can chain several wins.
  • Unlimited multipliers in free spins. A common pattern: each cascade during the bonus raises a multiplier that does not reset. This is where the big wins come from.

The result is a slot that feels different on every spin: a 324-way spin and a 100,000-way spin look and sound very different, and that variation is the core of the appeal.

Why players search for Megaways

Megaways became a genre name because players learned to associate it with a specific experience: high volatility, long cascading sequences and the possibility of a very large win in the bonus. Players who like it tend to look for the label in the lobby search bar rather than for a particular studio. In the UK and Northern Europe the genre became mainstream with Bonanza, Extra Chilli and White Rabbit; in Latin America and Eastern Europe the Pragmatic Play Megaways versions of existing hits (Great Rhino Megaways, The Dog House Megaways, Big Bass Bonanza Megaways) brought it to a broader audience.

Operators notice the result in their data: Megaways fans are persistent, play long sessions and like to try new Megaways releases as soon as they appear. That is why a dedicated collection, updated automatically, is worth more than scattering the titles through the main grid.

Studios that build Megaways games

Big Time Gaming, now part of the Evolution group, still makes some of the most recognised Megaways titles: Bonanza, Extra Chilli, White Rabbit, Danger High Voltage Megaways. Many studios build their own Megaways games under agreement with BTG, among them:

  • Pragmatic Play — Megaways versions of its hits, from The Dog House to Big Bass and Madame Destiny.
  • Red Tiger — Gonzo’s Quest Megaways, Piggy Riches Megaways and a long series of others.
  • Blueprint Gaming — Fishin’ Frenzy Megaways, Buffalo Rising Megaways, Wild Wild West Megaways.
  • iSoftBet, Relax Gaming, Kalamba, Stakelogic, Skywind and many other studios with their own Megaways ranges.

Because so many studios use it, the Megaways collection is one of the rare lobby categories that cuts across providers. A collection built from one studio only would miss most of the titles players know.

Operator checklist for Megaways titles

Values come from each studio’s game rules and change between versions.

What to check Why it matters on a Megaways slot
Maximum waysMost titles top out at 117,649; some variants add more reels or rows and go higher.
Published RTPUsually around 96% in the default configuration; studios sometimes offer several RTP versions of the same game.
VolatilityTypically high or very high. Good for players chasing a big bonus, less for those who want frequent small wins.
Max winVaries widely from title to title, often several thousand to tens of thousands of times the stake.
Bonus buyMany Megaways games include a feature buy; it is a separate, larger debit.
Minimum and maximum betSet per currency by the studio; check that it suits your market’s players.
Mobile layoutSix tall reels need a well-built portrait mode. Launch with device=mobile.

Building a Megaways collection with our API

Megaways is a mechanic inside slots, so it is not a separate category in our normalised game list: Megaways titles carry game_type: slots. The reliable way to build the collection is to use the name, since every title using the mechanic includes “Megaways” in its name.

  1. Call getGameList once a day and keep entries where game_type is slots and name contains “Megaways” (case-insensitive).
  2. Group them by provider_name if you want a studio filter inside the collection; getProviderList gives you names and logos.
  3. Sort new arrivals to the top: Megaways fans look for fresh releases.
  4. Launch any title with getGame, or offer a preview with getGameDemo when play_for_fun_supported is true.

Because the collection is rebuilt from the game list, new Megaways releases join it with no work on your side. The casino game aggregator API keeps adding studios, and each studio’s Megaways titles flow into your collection automatically.

What cascades and bonus features mean for your wallet

A Megaways spin can chain many cascades, but for the wallet it is still one round: a debit for the stake and, if the spin pays, a credit for the total win. The same goes for the free spins bonus: the spins are played inside the game, and the winnings arrive as credits that have no matching debit. This is normal and documented; your callback must accept a credit on its own and de-duplicate on call_id only.

Feature buys behave differently: the purchase is a debit worth a multiple of the stake, followed by the bonus credits. If your risk team monitors large debits, flag bonus buys so they are not mistaken for anomalies. Callbacks are sent as signed GET requests, as described in the API documentation.

Currencies and markets

Megaways players are everywhere, from the UK and Scandinavia to Brazil, Turkey and India. The game opens in the currency passed at launch, with bet levels set by the studio for that currency. Native currencies include EUR, GBP, USD, SEK, NOK, DKK, BRL, MXN, TRY, INR, CAD, AUD, NZD, ZAR, PLN and many more. For any other currency, your account works in USD or EUR and your platform converts. The catalogue and currency coverage evolve continuously; the API always gives you the current picture.

Why source Megaways slots through SoftAggregator

Megaways is a cross-studio genre, and cross-studio content is exactly what an aggregator is for. With SoftAggregator you get the Megaways titles of many studios inside a catalogue of 40,000+ games from 200+ providers, one seamless wallet, local currencies and a collection that maintains itself from the game list. Pair it with the rest of our game aggregation offer — Big Bass Bonanza, Sweet Bonanza and the other trending titles — and your slot lobby covers what players are searching for.

Frequently asked questions

What does Megaways mean in slots?

Megaways is a reel mechanic created by Big Time Gaming in 2016: the number of symbols on each reel changes on every spin, so the number of ways to win changes too, up to 117,649 on a standard six-reel game.

How do I list all Megaways slots through the API?

Call getGameList and keep games with game_type slots whose name contains “Megaways”. Rebuild the list daily so new releases appear automatically.

Which studios make Megaways games?

Big Time Gaming, which created the mechanic, and many other studios including Pragmatic Play, Red Tiger, Blueprint Gaming, iSoftBet, Relax Gaming, Kalamba and Stakelogic.

Are Megaways slots high volatility?

Most are high or very high volatility, with the largest wins concentrated in the free spins bonus. Check each title’s rules for its published RTP and max win.

How do free spins wins reach my wallet?

The free spins run inside the game. Their winnings arrive as credit callbacks without a matching debit; accept them and de-duplicate on call_id.

Can players buy the bonus on Megaways games?

Many titles include a feature buy where the studio offers it. The purchase is a single larger debit followed by the bonus credits.

Give Megaways fans their collection

Megaways titles from many studios, rebuilt daily from one game list, on one seamless wallet. Request operator access.

Request operator access