Slot Boss Sister Sites – No deposit bonuses, 400+ slots & Eyecon progressives.

Logo image of Slot Boss

Slot Boss sister sites include Leo Vegas, US Casino, Slotto, Pink Casino, Bingo Star, and more.

Sister Sites of Slot Boss and the site itself are regulated and licensed by the UK Gambling Commission for remote Bingo, Casino, and general betting under the reference number: 39198, and no sanctions are recorded as of yet.

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Who operates Slot Boss?

Slot Boss is a UK based online gambling site that offers quality slot and casino games. Partner sites of Slot Boss are operated by LeoVegas Gaming Plc, a premier GameTech company, which uses state of the art technology for online gaming.

If you want to visit the Slot Boss office, then you can find it at Level 7, Plaza Commercial Center, Bisazza Street, Sliema, SLM1640. Read on for the full details.

The following are the main features that Slot Boss and its sister sites offer to players:

Slot Boss Sister Sites 2021

Rank
Sister Sites
Bonus
Rating
Visit
1
20 Free Spins No Deposit Bonus!
2
Play £10, Get 50 Free Spins or £50 of Free Bingo
18+ #Ad begambleaware.org. New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Double Bubble. Spins value: 20p each. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit required. Play Responsibly.
3
20 free spins no deposit
4
Get 100 lucky spins!
BeGambleAware.org | 18+ | #ad |First Deposit Only. Min. deposit: €10. Game: Starburst, Spin Value: €0.10. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min €0.10) of the free spin winnings amount or €5 (lowest amount applies). Free Spins must be used before deposited funds. If the game for Free Spins is not available in your country you will be notified of the game you can play by pop up when you are in the casino client. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies..
5
Deposit £10, Get 30 free spins on Secrets of the Phoenix Megaways
18+ #Ad begambleaware.org. New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Secrets of the Phoenix Megaways. Spins value: 20p each. Play Responsibly. . †£10 lifetime deposit for Daily Free Game.
6
20 Free spins no deposit!
BeGambleAware.org | 18+ | #ad - New Players Only| No Deposit Required | Valid Debit Card Verification Required | £8 Max Win Per 10 Spins | Max Bonus Conversion £50 | 65x Wagering Requirement | Full T&C's apply
7
Play £10 Get 30 Free Spins on Rainbow Riches
18+ #Ad begambleaware.org. *Click for full Rules. – New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Rainbow Riches. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit for Daily Free Game.
8
100 free spins welcome bonus!
BeGambleAware.org | 18+ | #ad First deposit only. Min. deposit: €20. Game: Book Of Dead, Spin Value: €0.10. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min €0.10) of the free spin winnings amount or €5 (lowest amount applies). Free Spins must be used before deposited funds. If the game for Free Spins is not available in your country you will be notified of the game you can play by pop up when you are in the casino client. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies.
9
20 Free Spins No Deposit
10
Up To 500 Free Spins on Chilli Heat.
18+ Only | BeGambleAware.org | #ad | New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&C's apply

Leo Vegas – The most popular of all Slot Boss sister sites.

Leo Vegas logo image transparent

Leo Vegas casino is the most popular Slot Boss partner site offering one of the best gaming experiences online.

Leo Vegas casino is the most popular Slot Boss partner site offering one of the best gaming experiences online.

Incidentally, Leo Vegas was the first 100% mobile-friendly online site to offer a mix of the best slot software under the same roof. IGT, Microgaming jackpot games, WMS and Barcrest slots are all found here. It’s also one of the most generous Slot Boss sister sites featuring a whopping £700 free bonus welcome package.

Not to get confused, this bonus package gives you 100% free bonus up to £50 on your first deposit; but more bonuses follow once you’ve become a registered player at the site. If you like playing slots at Slot Boss, you will love Leo Vegas. Sign up today.

If you like Leo Vegas, you should have a look at our LeoVegas Sister Sites – Up to £250 free bonus at similar sites.

Castle Jackpot – A Slot Boss partner site with £10 no deposit.

Slot Boss Sister Sites - No deposit bonuses, 400+ slots & Eyecon progressives. 4

A favorite Slot Boss casino sister sites is Castle Jackpot with a generous £10 free no deposit bonus to play slots.

Another one of my favourite Slot Boss casino sister sites is Castle Jackpot. It’s a cool online casino that welcomes players with a generous £10 free no deposit bonus to spend playing online slots. Apart from the no deposit bonus there’s also a £25 free welcome bonus that it’s credited after you make your first deposit.

And just like you’d expect from any of the Slot Boss partner sites, there’s a wagering requirement of 99x your bonus amount with a maximum winning limited of £50 cash.

It’s truly not a bad deal if you fancy an offer that gives you a real taste of the action without forking out a pound of your own money. If you're looking for more free no deposit bonuses and huge collection of online slots, we recommend that you visit our Castle Jackpot sister sites review.

Pink Casino – A Slot Boss sister site for female players.

Pink Casino logo image transparent

The best bingo site like Slot Boss, Pink Casino has the female and savvy player in mind.

Our fifth option of the best sister sites to Slot Boss is Pink Casino. This gaming site has clearly been designed with the female and savvy player in mind.

All new registrations to the site are eligible for a free £10 no deposit slots bonus for newcomers. As it is the case with any other site similar to Slot Boss casino, the freebie does not come without some restrictions.

Expect to meet a wagering requirement of £990 before even dreaming about requesting a withdrawal. There’s a huge choice of online slots, progressive Jackpots, casino and bingo games on offer.

Powered by the best software in the industry, here you can play games like Starburst, the whole Rainbow Riches slots saga, Lucky Lady’s Charm slot, Golden Goddess slot, Action Bank, Cleopatra, Reel King slots game, Kitty Glitter, Fluffy Favourites Jackpot, the full Monopoly slots saga including Monopoly Big Event and Bring the House Down slots. Still not satisfied?

Find more similar casinos with a free bonus in our Pink Casino Sister Sites – Find the best slots at the top similar casino sites.


Other Slot Boss sister sites

There are more sister sites to Slot Boss including MCasino and UK Casino.

Keep on reading and get to know them all.

Rank
Sister Sites
Bonus
Rating
Visit
1
20 Free Spins No Deposit Bonus!
2
Play £10, Get 50 Free Spins or £50 of Free Bingo
18+ #Ad begambleaware.org. New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Double Bubble. Spins value: 20p each. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit required. Play Responsibly.
3
20 free spins no deposit
4
Get 100 lucky spins!
BeGambleAware.org | 18+ | #ad |First Deposit Only. Min. deposit: €10. Game: Starburst, Spin Value: €0.10. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min €0.10) of the free spin winnings amount or €5 (lowest amount applies). Free Spins must be used before deposited funds. If the game for Free Spins is not available in your country you will be notified of the game you can play by pop up when you are in the casino client. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies..
5
Deposit £10, Get 30 free spins on Secrets of the Phoenix Megaways
18+ #Ad begambleaware.org. New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Secrets of the Phoenix Megaways. Spins value: 20p each. Play Responsibly. . †£10 lifetime deposit for Daily Free Game.
6
20 Free spins no deposit!
BeGambleAware.org | 18+ | #ad - New Players Only| No Deposit Required | Valid Debit Card Verification Required | £8 Max Win Per 10 Spins | Max Bonus Conversion £50 | 65x Wagering Requirement | Full T&C's apply
7
Play £10 Get 30 Free Spins on Rainbow Riches
18+ #Ad begambleaware.org. *Click for full Rules. – New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Rainbow Riches. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. **£10 lifetime deposit for Daily Free Game.
8
100 free spins welcome bonus!
BeGambleAware.org | 18+ | #ad First deposit only. Min. deposit: €20. Game: Book Of Dead, Spin Value: €0.10. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min €0.10) of the free spin winnings amount or €5 (lowest amount applies). Free Spins must be used before deposited funds. If the game for Free Spins is not available in your country you will be notified of the game you can play by pop up when you are in the casino client. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies.
9
20 Free Spins No Deposit
10
Up To 500 Free Spins on Chilli Heat.
18+ Only | BeGambleAware.org | #ad | New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&C's apply
More Slot Boss sister sites

21 Casino – A Slot Boss sister site with 121% bonus.

Logo image of 21 CasinoIf you’re fishing for freebies and lots of fun online video slot games, 21 casino is another casino site similar to Slot Boss which also offers all newcomers a 121% deposit bonus up to £300 .

Much like any of the Slot Boss partner sites, there’s a wagering requirement of 35x your bonus amount to deter bonus hunters from trying to make a quick pound without actually meaning to play at the site for real.

If you do want to play for real money prizes then there’s an unusual 121% free welcome bonus that can give you up to £300 extra to spend on the games. Slot games are powered by a mind-blowing number of brands such as NetEnt, Elk Studio, WMS, Thunderkick, Scientific Games and many more.

You should know that many of the best slots are also available in a progressive Jackpot version if you fancy your chances of winning a crazy cash prize. The mix of slots software at 21 Casino is not unique but it's one that players love.

If you'd like to discover more casinos with similar features that offer a fun and secure gaming experience, have a look at the list of Pots of Luck sister sites with similar software, bonuses and games.

UK Casino – A site like Slot Boss with £50 no deposit bonus.

Slot Boss Sister Sites - No deposit bonuses, 400+ slots & Eyecon progressives. 5And our last choice for players looking for sites like Slot Boss is UK Casino. At this popular gaming site players are welcomed with a free £10 no deposit slots bonus that can be spent on slots, table games, and live casino games.

As it happens with other Slot Boss sister sites, there's a limit as to how much you can win using the free bonus. In this case, players can withdrawal up to £50 in cash after meeting the wagering requirement while staking a maximum amount of £5 per spin. One reason for listing UK Casino as the last recommended option is that they have made it clear in their T&C’s that they are “not obligated” to discuss player complaints.

MCasino – A sister site of Slot Boss with a 10x booster bonus.

Slot Boss Sister Sites - No deposit bonuses, 400+ slots & Eyecon progressives. 6Players looking for a unique free no deposit bonus offer should visit MCasino. This online casino is different from other Slot Boss sister sites in that new players can get a £1 free no deposit bonus after registration.

Getting just £1 free bonus seems cheap, doesn’t it? What’s different about this bonus is that it comes with a 10x win boost. This means that any winning combination you get from this £1 bonus will be multiplied by 10, thus giving you a chance to win a much higher prize and best of all, tied to a wagering requirement of 99 x £1 instead of x £10 as it’s the case with the rest of the sister sites of Slot Boss.

Game-wise you won’t miss anything. Slots here are powered by IGT, Evolution Gaming, Barcrest, Microgaming, NetEnt and even Novomatic. Create a new player account and get your £1 free with 10x booster bonus.

FAQ

Can I deposit with Paypal? Yes, you can make deposits and withdrawals at Slot Boss using your PayPal account.

Will I receive free spins at Slot Boss? Yes. As a new player, you will receive a £10 free no deposit bonus when you sign up. There's a 99x wagering requirement and you must Opt-In to receive it. But keep in mind the complaints that surround this offer.

What is the min deposit amount? The minimum deposit you can make at Slot Boss is £10.

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