What Is the Megaways Mechanic?

The Megaways mechanic is a patented slot engine developed by Australian developer Big Time Gaming (BTG). It fundamentally changed the way online slots generate winning opportunities by introducing a dynamic reel system — where the number of symbols on each reel changes with every single spin.

Since BTG began licensing the mechanic to other developers, Megaways slots have exploded in popularity, with hundreds of titles now available from studios including Pragmatic Play, Red Tiger, and Blueprint Gaming.

How Does the Dynamic Reel System Work?

In a standard slot, the number of symbols per reel is fixed. In a Megaways game, each reel can display a variable number of symbols on every spin — typically between 2 and 7. Since the number of ways to win is calculated by multiplying the number of symbols on each reel together, the total number of ways fluctuates dramatically spin to spin.

On a standard 6-reel Megaways setup:

  • Minimum ways: When all reels show 2 symbols: 2⁶ = 64 ways
  • Maximum ways: When all reels show 7 symbols: 7⁶ = 117,649 ways

This creates the thrilling possibility of hitting 117,649 ways to win on any given spin.

Cascade / Avalanche Feature

Nearly all Megaways slots incorporate a cascade mechanic (also called Avalanche or Tumble). When a winning combination lands, the winning symbols are removed and new ones fall from above to fill the gaps. If the new symbols create another win, the process repeats. Each consecutive cascade typically increases a running multiplier, which is applied to all subsequent wins in the same spin sequence.

The Free Spins Bonus Round

Most Megaways titles feature a free spins bonus triggered by scatter symbols. The key element that makes these bonus rounds so exciting is an unlimited win multiplier:

  1. The multiplier starts at 1x at the beginning of free spins.
  2. It increases by 1x (or more) with each cascade during the bonus.
  3. Unlike the base game, the multiplier does not reset between free spins — it keeps growing throughout the entire feature.

This means a long chain of cascades late in the bonus round can be applied to a very high multiplier, creating the potential for substantial wins.

Reaction Feature & Horizontal Reel

Some Megaways slots also include a horizontal reel (a row across the top of the standard grid) that adds extra symbols to specific reels, further increasing the number of active ways to win on those positions.

Popular Megaways Titles to Explore

TitleDeveloperMax WaysVolatility
Bonanza MegawaysBig Time Gaming117,649High
Extra Chilli MegawaysBig Time Gaming117,649High
Buffalo King MegawaysPragmatic Play200,704High
Gonzo's Quest MegawaysRed Tiger117,649Medium-High

Are Megaways Slots Right for You?

Because of their high volatility nature, Megaways slots tend to reward patience and larger bankrolls. They are ideal for players who:

  • Enjoy high-variance, high-excitement gameplay.
  • Find the cascading win mechanic engaging.
  • Are comfortable with potentially long gaps between significant wins.

Players who prefer frequent smaller wins may find low-volatility classic or cluster-pays slots more enjoyable.

Summary

The Megaways mechanic revolutionized online slot design by creating dynamic, ever-changing win possibilities on every spin. Combined with cascading wins and escalating multipliers, these games offer some of the most thrilling — and volatile — experiences in modern online gambling. Understanding how they work helps you approach them with the right expectations and the right bankroll strategy.