Slot Stats: RTP 95.63% | Max Win 5,000x | Review & Demo

A damsel in distress is trapped at the top of a castle, and you're the player perfect for rescuing her. So get ready to take on Merkur Gaming's Magic Mirror Deluxe 2 slot, a 5-reel game with 10 fixed paylines, an RTP of 95.63%, and a maximum win of 5,000x for securing the maiden's safety.

The main bonus round is triggered when 3 or more mirror scatter symbols land in view. Before the feature begins, the slot game will randomly award you a symbol from the paytable to act as your expanding symbol for the duration of the feature. If you can hit 3 or more scatters again, the bonus will re-trigger, and you'll be awarded an additional symbol that can expand. If luck is on your side, all paytable symbols can become active.

Slot Stats: RTP 99% | Max Win 5,000x | Review & Demo

We're treated to an Ancient Greek theme in Relax Gaming's Book of 99 slot game. Why is the 99 so important in the title of this slot? Well, that's because it comes with a massive RTP of 99%, the highest on any game you'll find in this niche. Additional stats to tell you about are that it's a 5-reel game with 10 fixed paylines, offering a maximum win of 10,000x bet.

There's a bit of a twist when it comes to triggering the bonus round, as this can be done in two ways. Firstly, you have the standard trigger where 3 or more scatters appearing in view activate the feature. Secondly, there's a collection meter that increases every time a scatter lands in view. When you collect a total of 100 scatters, the bonus will instantly trigger. Once activated via either of the two methods, an expanding symbol will be awarded randomly from the paytable and remain active for the entirety of the feature.

Slot Stats: RTP 96.01% | Max Win 50,000x | Review & Demo

Once the Megaways Slots genre exploded onto the scene, it was only a matter of time until the mechanic was included in an expanding symbol slot. As Blueprint Gaming was the first to acquire the Megaways license, this allowed them to be the first provider to make such a game, and they developed the title Legacy of Ra Megaways. This slot game is played over 6-reels with up to 15,625 ways to win active on any spin and has a maximum win of 50,000x bet.

Landing at least 3 scatter symbols in the base game will cause the free spins feature to be triggered. Players are then randomly awarded a symbol to act as their expanding symbol throughout the bonus round. The most exciting part about this game is that due to it operating on the Megaways engine, it's possible that you can hit winning symbol expansions over thousands of ways, leading to potential big wins.

Slot Stats: RTP 95.36% | Max Win 10,000x | Review & Demo

Stand shoulder to shoulder with the legendary Genghis Khan as you prepare for hand-to-hand combat in Thunderkick's Sword of Khans slot game. This eastern adventure sets you on a path in search of big wins as you spin your way across a 5x3 reel matrix where 10 fixed paylines and an RTP of 95.36% can help you reap rewards of up to 10,000x the bet.

During the base game, if 3 or more scatters hit, the bonus will be triggered, and you'll receive a random amount of starting spins ranging from a minimum of 5 up to a maximum of 15. At the same time as the sword reveals your starting spin count, it will also award your expanding symbol that will be in play throughout the bonus round. Should you again hit a minimum of 3 scatters whilst the feature is in play, the sword will award more free spins and an additional expanding symbol.

Slot Stats: RTP 96.58% | Max Win 25,000x | Review & Demo

Game provider Play'n Go has released several expanding symbol slots over the years, many of which are worthy of featuring in our top five. However, of all these games to date, our favourite is the 5-reel slot Legacy of Dead. Themed upon ancient Egypt as many of the Play'n Go "Book Style" slot games are, this version includes 10 fixed paylines, a high RTP of 96.58% and a stunning maximum win of 25,000x bet.

Making your way into the pharaoh's tomb to play the bonus feature will require you to land a bonus symbol on at least 3 of the reels in the base game. Once activated, you'll be awarded 8 free spins and a symbol selected randomly from the paytable, which acts as your expanding symbol. Landing 3 or more scatters whilst the feature is in play rewards an extra 8 free spins and another expanding symbol, with no limits on how many re-triggers or symbols that can be awarded.