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Quick Guide to Slot Common Slot Terms & Features

We know that many of you have already be experienced in playing slot machines. However, there may still be a few terms in the world of online slots that you do not know as new slots are launching with never seen before features. In fact, the team here at are regularly asked to clarify some terms by our avid readers. Let’s give you a quick rundown of some terms that may pop up a lot for you.

Bonus Games

Just about every one of the top casino games will offer bonus rounds nowadays. These bonus rounds are varied. Some will offer quick little features that shoot some wilds onto the reels, others will have you spin a bonus wheel. We have seen some slots which make this a game of skill, but they are very rare because casino game providers really want to base their games around randomness.

Cascading Reels

These aren’t really reels. Instead, symbols will fall into place when you spin the slot. When a winning combination is formed, the symbols which form part of the winning combination disappear. New ones will then fall into place and replace them. This means that you can get several wins on a single spin.


When you bet on a slot, you aren’t betting using real money. Well, you are, but the real money will have a coin value in the game. You bet using coins. There should be ample information with regards to how much each coin is going to cost you.

Expanding Wilds

These are features which appear on a lot of new slot machines now. So, check out some new slot sites if you want to enjoy them. With this feature, the wild will stretch to cover the whole reel. This means that you suddenly have more opportunities to win some sweet cash!

Free Spin Rounds

If you read the various reviews that we have put together here at No Deposit Slot Sites, you will discover that we are fans of free spins. This is where you trigger a bonus game. You then have some free spins, normally about 10, to win. This is a great way to rack up some cool little wins.

Gamble Feature

We are never fans of the gamble feature. This is because we can never quite win. The gamble feature that you find in slot machines gives you the opportunity to double, or sometimes quadruple your wins.

This is very much Bruce Forsyth-style ‘Play Your Cards Right’ (he did present that, didn’t he? We seem to recall he did), where you need to guess the card that is going to appear. It is very risky and can really eat into your win rate if you get things wrong.


This occurs during the free spins mode. You can retrigger the feature in some cases. When you read through our reviews, you will hear us talk about whether free spins can be retriggered. This means that you will get even more free spins! Sadly, this is a feature which is not all that common now.

Return to Player %

You may see this referred to as RTP. You can think of this as the house edge. If the RTP is 95%, it means that £95 of every £100 staked on that machine is going to go back into the player’s pocket. It does not necessarily mean that you will always get back a small amount of what you gambled, you could win nothing. It averages out over the game. In the United Kingdom, it is a legal requirement to have the RTP listed in a game. You can read more about RTP % and the highest paying slots here.

Scatter Symbols

Scatter symbols are bonus symbols. They can also be the highest paying symbols in the game.

Sticky Wilds

With this feature, the wilds that pop up on a spin will remain ‘stuck’ to the reels for the next spin. This gives you even more of an opportunity to win some cash!

Tumbling Reels

These are very much the same as the cascading reels which we mentioned previously!

Wild Symbols

This is a staple in all slot machines. Wild symbols are symbols which act as a replacement for any other symbol in the game.

Multipliers (x2, x3, x4 etc)

This can come in the form of a symbol or as a ‘bonus feature’ in the game. Your wins will be multiplied by whatever the multiplier is! Why not check out a few of the new slot sites which have a no deposit bonus to put some of your new found knowledge into practice?