Best Slot Sites for 2021

100% up to 100€

New Customers Only. Deposits made with e-wallets (Neteller, Moneybookers etc.) are not valid. Wagering requirements (x45) apply. Some games contribute less to the wagering requirement, some games contribute nothing. Please see terms & conditions for further details.

888 Casino

If you liked the previous bonus then you'll love what 888 Casino has to offer. Firstly they have two welcome bonuses in place for New Players. Although they are both against a minimum deposit one is a simple 'double your money' bonus whereas is split into 5 tiers. Of course, the latter is a better option if you are looking to win real money but it also comes with bigger risks. The online casino has taken things one step further. They also have a no deposit in place whereby players are awarded free money as soon as they sign-up. Again, they are specific wagering requirements in place and casino games contribute differently to them. The good thing is that all video slots contribute fully and they have a great range if NetEnt slots to wager on such as NetEnt's Berryburst.

Existing players are in for just as sweet a deal. 888 Casino has a bonus for each day of the week. For instance, on Mondays, they have a deposit bonus specifically for progressive jackpot slots. Other bonuses include cashback offers and free play money online. There are many opportunities to reel in a big win and the casino is even helping you get there.

888 Casino

up to 1500€

Welcome1

18+, New players only. $/€20 min deposit. 1st deposit immediate 100% up to $/€100 bonus. 2nd -5th deposits must be done and wagered 3 times within 7 days of the 1st deposit, to receive 30% up to $/€350 bonus per deposit. Bonus wins are capped at $/€500. To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days. Wagering req. vary by game. This offer may not be combined with any other offer. Withdrawal restrictions & full 888Casino T&Cs Apply. Gamble Responsibly -- www.begambleaware.org

Casumo

If you are a fan of Barcrest slots such as Rainbow Riches, then Casumo is where you want to be heading. The thing about this slot site is that the welcome bonus is subject to change. For what it's worth, they usually offer a mix of bonus money and free spins for new customers making the first deposit. Wagering requirements apply of course and video slots contribute fully.

You may only be able to play selected games when claiming a bonus offer but the library is jam-packed full. If you're a Big Time Gaming fan then you'll be pleased to know that there are loads of Megaways trademarked slots to choose from. Of course, there are hundreds of other slots from top game providers available. IGT's Da Vinci Diamonds and Rumpel Wildspins by Novomatic are some good examples.

New customers from the UK tend to have their own bonus. At times they're lucky enough to receive no deposit bonus spins. What's more, the free spins usually can only be used on the popular 5-reel slots like Starburst.

When it comes to existing players, the online casino is less transparent. We would suggest signing up to their newsletter though as they announce all their deals through this. In our experience, they are constantly updating their special bonus offers.

Players from United Kingdom Accepted

Traits of a Good Gambling Site

Nowadays, most casino sites look very similar. To many, the end-user is not the slot player exclusively. This is why what you’re looking for might not be available at most casinos. However, there are niche gambling sites that specialise in slots. We can confidently call them slot sites. And as with any other category, some are better than others, and we call them “top slot sites”. Here are the traits that top slot sites have in common.

Casino Game Filters

Game filters, or in specific, slot game filters are taken for granted, and the only time they are appreciated is when they are not available. The option to filter games based on their features, such as bonus games, free spin bonus rounds, multipliers or even the ones that come with a unique feature such as the Avalanche, is probably the best way of exploring new content.

Slot sites, meaning the casinos that put the spotlight on slot games, have more than a thousand slot games. This vast game collection is rarely used to its full potential, but when it is, it’s usually because of the wide array of slot filters available. Just to give you an idea of how diverse game filters can be, here are a few:

Free Spins
Branded Games
Gamble Feature
Multipliers
New Games
Wild Reels
Win Both Ways
Sticky Wilds
Bonus Games
Expanding Wilds
Re-spins
Random Wilds

Not many slot sites offer the full breadth of these filters, yet, even with a handful of these, the gaming experience is significantly improved.

Videoslots

Players from United Kingdom Accepted

New players only. Min deposit: £/$/€10. Account balance is withdrawable at any time. Upon withdrawal, any remaining bonus spins are forfeited. 7 days to activate the spins. Bonus spins expire 24 hours after activation. Full T&Cs apply. 18+, Play Responsibly.

Slot Game Quantity

It’s a common saying that out of quantity comes quality, and we can’t argue with that. It’s one of the reasons why we have so many online casino reviews. Nevertheless, we also have quite a lot of online slot reviews. A big game collection offers you more options to choose from. The filters will get you there, but if there aren’t enough slot games available, the filters can’t help much. Today, there are dozens of online casino game providers, some part of big software groups, others are still trying to breakthrough. Usually, an online casino site will offer games coming from the most popular game providers like NetEnt, Microgaming, Play’n GO and Betsoft Gaming. The top slot sites go above and beyond and include the games of Red Tiger, Yggdrasil Gaming, Pragmatic Play and the full Scientific Games portfolio.

The number of games may vary due to licensing and regulations.

Good Progressive Jackpot Slot Collection

When we say a good progressive jackpot slot offer, we mean the full collection of at least the most popular jackpot games. Betsoft Gaming’s jackpot slots will not suffice. You want access to the record-breaking Mega Fortune and Mega Moolah. You want to be able to play Holmes and the Stolen Stones, but also have access to IGT’s jackpot games like Siberian Storm.

Sure, you can still go back to video slots, and enjoy Reactoonz, Gemix or Book of Dead, but nothing beats the thrill of hunting for a progressive jackpot. Only a small number of slot players have managed to land the jackpot prize, but those that have, are well aware that the patience is worth it. Then again, we have to warn you of the threats of tunnel visioning on a progressive slot. They come with lower than average return to player, which means, they can be a costly “type of entertainment”.

SlotsMillion Casino

100% up to 100€ + 100 Spins

Progressive Jackpot Tracker

Speaking of jackpot slots, if you happen to be a “jackpot hunter”, you will surely like the jackpot trackers online slot sites have to offer. They give you real-time data on what’s the jackpot slot you should go for. However, don’t go blindly into this “competition”, who will get first to the top. If you don ‘t like the game, just don’t play the slot. Nevertheless, it’s good to know where most players are headed. This, in turn, makes the jackpot grow even faster, but because more players are into it, somebody will win the jackpot and win it very soon! It’s basic supply and demand, there’s one jackpot, and thousands of slot players!

Access to Slot Casino Bonuses

We’re not talking about the welcome bonus every new customer is entitled to. Slot bonuses have become a staple, and are a foundation in every VIP and Loyalty Rewards program. Since slot players wager a lot of money (read, play a lot, not deposit a lot), they get to see the most benefit out of these loyalty programs. Then again, even if you’re not a VIP player, you will have access to frequent slot casino bonuses. The top slot sites offer various promotions that target slot players in particular. These may include, but are not limited to, slot tournaments, slot races, random cash drops, which you take part in by playing the qualifying slot games.

Some slot sites go further and offer these bonuses in the promotions page, that are readily available. Nevertheless, check the terms and conditions, looking for a term that prevents players from claiming a bonus on every deposit. This means that you might have to one, two or even three deposits with no bonus before you become eligible for one.

Energy Casino

200% up to 100€

On-site Slot Information and Details

Any information related to the slot games can help you find a game that best suits your preferences. However, the number of online casino sites doing this is going down with every platform update. To some, it’s just another added expense, to others, it’s seen as an opportunity to improve their player service.

The RTP, the problems with the game, the game alternatives, all of these can in some way help you pinpoint the best slot game for you. Note, as we said, they’re extremely rare, so we recommend you to not raise your hopes if this is important to you. Then again, if you do come across a slot site of this kind, you’ve found a hidden jewel.

Unibet Casino

100% up to 100€