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Online Slots Welcome Bonus

Online Slots Welcome Bonus Guide

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Welcome to CasinoBiggestBonus.com Online Slots Bonus page where we have listed the casinos who are offering the best welcome bonuses to play online slots for free. Take a look and compare those fantastic offers, click on the link and claim the bonuses directly on the operators’ site. You will then be able to start playing online slots for free and maybe even walk away with some real cash.

If you already have accounts with the online casinos that we have suggested below, simply check our casino bonus list page where you will find a comprehensive list of online slots welcome bonuses from top casino operators.

Best Online Slots Welcome Bonus

Best Casino Bonus, 18+Only, begambleaware.org
Get 10 Free Spins NO Deposit + 100% Up to £200 On First Deposit - BGO Casino
New customers only. 100% deposit match up to £ 200. Selected Games only. 50x wagering. Game weightings apply. Max bet 10% of Bonus up to £ 2.50. Max win £ 2,000. 7-day expiry on Bonus. 10 Free Spins on registration. 3-day expiry on Free Spins. No Neteller/Skrill. Min deposit £ 10. Deposit/Withdrawal fees apply. Full T&C's Apply. 18+. Please Gamble Responsibly
£100 Bonus Cash & 200 Free Spins - Mr Green
New players only. 18+. 35x wagering applies to Bonus Cash and Free Spins. Deposit of £20+ unlocks a 100% Match Bonus up to £100 in Bonus Cash, subsequent wager of £20+ on slots unlocks 100 Starburst Free Spins and 100 additional Free Spins (5 per day over 20 days). BeGambleAware.org.
Collect 4 deposit bonuses worth up to £/€150
18+. First 4 deposits of £/€10+. Certain deposit types methods excluded. 4 bonuses available once, in chronological order. 40x play through within 14 days. Real money first when playing bonus. Weightings apply. Further T&Cs apply.
Deposit £100 Play with £200 + 100 Spins on Starbursts - Pots Of Luck
New players only. Selected slots only. Min deposit £10, Max Bonus £100 + 100 bonus spins on Starburst, 30x wagering (dep+bonus), 4x conversion. T&Cs Apply.

If you are keen to get some extra bang for your buck (on in this case pounds) the most straightforward thing you can do is to look for a casino bonus. The bonus will be available in many different forms and will be possible to use on a huge number of slots games: in short, it is free money that is fully available to you.

Even if it is true that you would need to meet some terms and conditions to get the most out of the online slots welcome bonus, there is a considerable difference between the effort that you would need to put in and the value that you will get in return. If you check our bonus list page, you will see that by just taking advantage of a few bonuses you will secure more than £1,500 online slots welcome bonuses.

Like everything in life, there isn’t a single online slots welcome bonus that fits all. Having said that, if you are a genuine real money player who is willing to place some wagers you will find that there is an ongoing stream of bonuses out there for you to take advantage of.

How to use Online Slots Welcome Bonuses?

Before you start enjoying any online slots welcome bonuses you need to ensure you understand how to claim it and also the terms and conditions linked to the offer. To make the online slots welcome bonus system fair for everyone involved, all the best casinos are adding some wagering requirements on their bonuses. This is not only to protect their operations but also to protect you from those people trying to game the system and causing bonus offers to reduce in the long run.

In fact, any customer that is only there to manipulate the system and also to try and get more than they should get is taking bonus money away from genuine customers. So, to allow everyone to have the possibility to play slots with some free cash, casinos will ask you to wager some money before you are allowed to make a withdrawal request.

This is usually call wagering requirement or also ‘playthrough’ and it is a multiple of your online slot bonus. For instance, if you take advantage of one of the offers we have in our site and secure a 100% welcome bonus up to £300 with a wagering requirements of 30x, you will have to wager 30 times the size of your deposit and also the bonus amount before you will be allowed to get a refund.

The good thing about online slots casino bonuses is that you are allowed to use them on almost every game you want. So even if you can’t withdraw your bonus funds until you have complete your wagering requirements, you can use this cash to bet as if it was your own. Surely there might be maximum betting limits associated with your bonus but this doesn’t mean that you cannot make the best use of your online slots bonus to bank some nice wins.

For example, if you get £100 thanks to a casino bonus you could use the free credit to spin Starburst roulette, play some hands of Pontoon or even try your luck at the live baccarat table.

The Top Types Of Online Slots Welcome Bonus Offers

As mentioned, online slots welcome bonus are of many different kinds but most of them are very lucrative. Every one of our listed casino sites will offer some different deals. If you look at the whole industry though, the most common types of online slots welcome bonus are:

Deposit/Reload Bonuses

Regardless if this is your first deposit or your 100th, all the best online casinos will be offering something additional on top of the money you will deposit. This deposit/reload bonus is normally a percentage (for example 100% or 150%, etc.) and it will be added to your casino balance as soon as your deposit has been cleared.

Free Spins/Free Bets

When you place a bet of a certain amount on a slot or when you make a deposit during a particular period you might receive free spins as an online slots welcome bonus. Free Spins are only available on some specific games and have an expiry date so make sure you are reading the terms and conditions of the offer carefully so to take the maximum advantage. All the cash you will make from your free spins will be subject to wagering conditions so again be aware of what is required to meet those.

Social Media Promotions

Online casinos know well that the majority of their users like to be on social media and for this reason, they are running some online slots welcome bonus promotions dedicated to them. Those types of offers are usually in the form of free cash for taking part in community activity: for example liking the casino’s facebook, twitter or instagram page or taking part in a quiz. Similarly to other online slots welcome bonus all the promotions will have terms and conditions attached so it is crucial you read them carefully before getting involved.


As you can see online slots welcome bonuses are hugely important in the online betting world. Regardless of how skilful you are or the slot games you wish to play you will find plenty of opportunities to take advantage of welcome bonuses.