Free spins with multipliers

Perhaps the most common extra feature in free spins bonus games is multipliers. Bigger wins in bonus games are frequently obtainable, and this is usually done by multipliers. Some slots offer a fixed multiplier for all wins in a free spins round, while others have a multiplier that can increase as you play and win. 

If it’s a fixed multiplier this is usually x2 or x3, as in for example the slots Dead or Alive and Jack Hammer 2. Other games have a multiplier that increases as you get re-spins by winning, such as in Gonzo’s Quest. There’s also a possibility to get an unlimited number of multipliers that accumulate over the whole bonus game, as is the case in the Bonanza video slot.

It’s also possible to have a multiplier connected to only one or a couple of different symbols. This will often be the case for any wins containing a wild symbol or sometimes even the highest valued symbol in the game.

Extra wilds

Some slots are not giving you bigger wins when you enter the free spins bonus game, but rather increase your chances of getting winning combinations. The wild symbol, which is found in most slots, can usually replace all other symbols, perhaps excluding any scatter symbol, which means more wilds will mean a greater chance of triggering a win. It can be that you’ll simply have more wilds on the reels, or that some of the other symbols in the slot are functioning as wild in the bonus game. You might also get whole reels stacked with only wild or some fixed wilds that are locked in position as the rest of the reel is spinning. 

For example, in the Vikings Go Berzerk slot from Yggdrasil, you might turn some of the symbols into wilds, that will also stick for the rest of the bonus game, and in that way give you plenty of wilds. Another example is the Big Bad Wolf slot from Quickspin, where the three little pigs get turned into wild symbols as you also get re-spins. The same game provider also has the video slot Sakura Fortune where all wilds will expand to cover the whole reel, to become sticky for the remaining free spins. In NetEnt’s Jack Hammer 2 you start every free spin with one extra wild minimum, which is placed randomly on the reels. 

Sticky symbols for bigger wins

Whenever a symbol becomes sticky it’s a good thing. That means you’ll have the chance of building on your winning combination. This is quite a common feature in slots, and especially in the bonus games. Whether a symbol is sticky only for one spin, which can then give you a re-spin, or if it’s sticky throughout all your free spins will differ. The best option is, obviously, if they are sticky throughout the rest of your spins. 

Above we already mentioned the slots Sakura Fortune and Vikings Go Berzerk as examples of slots that have sticky wilds, but there are plenty more slots that have this feature. Even though any symbol can be sticky, it’s by far the wild that is the most common symbol for this feature. Dead or Alive is another slot where wilds become sticky, but they also have one more function. If you get one wild on each of the five reels you’ll trigger an additional five free spins. Spinions is yet another slot where you can cover almost all symbols with wilds – if you’re really lucky.

A locked wild that is sticky from the get-go is also something you should look out for. In Secret of the Stones, Secret of Christmas and Golden Fish Tank are some slots where you can get only sticky wilds covering the whole reel, without you having to “collect” them first. They can appear as soon as you enter the free spins round. 

Walking or expanding symbols

Symbols, especially wilds, that walk, move or expand in some way can also help you get those big wins all players are after. The good thing about this feature is that you’ll also get re-spins, which means you’ll get even more chances to win within the limits of the number of free spins you were awarded. 

The best example of a slot like this is Jack and the Beanstalk from NetEnt. All wilds are always walking in this slot, but in the free spins game, you’ll also get to collect keys that will unlock even better wilds that come stacked. If you get all three keys you’ll end up having wilds that can expand and cover the whole reel in addition to the walking feature that gives you more spins, and in that way more chances to win. 

Divine Fortune is a jackpot game, and in addition to the jackpot bonus game you might also get free spins. Here, all the falling wild symbols will automatically expand to cover the whole reel, before it starts falling. Since you might get several reels covered with only wilds you can get a truly massive win from this feature, and in that way also get spin after spin within the same game round.