Hidden Jack Sister Sites

Last update on July, 2026 By

Hidden Jack is operated by Fortaprime SRL, the company the Dutch gambling regulator fined in 2026 over a network of eight linked casinos. It holds no UKGC licence, and Casino Guru assigns a 1.9/10 Safety Index — a serious caution signal before you compare alternatives.

Silver Casino
1

Cosmobet

5.0

750% + Up to 7000€ 1000 FREESPINS +25% Cashback

0-Instant
98%
€15
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
1000 Free Spins 15%Cashback
Get Bonus!
2

Wildies

5.0

Welcome Pack 400% up to £3200 + 150 FS

0-24h
99%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
150 Free Spins 25%Cashback
Get Bonus!
Top Casino
3

Zizobet

4.9

800% Up to 7800€ +1000 FREESPINS +25% Cashback

0-1 hrs
98%
€10
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
50 Free Spins 20%Cashback
Get Bonus!
4

SlotRoyals

4.9

Welcome Bonus 200% up to 1700 GBP + 200 FS

0-24h
97%
€10
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
200 Free Spins 20Cashback
Get Bonus!
5

WinBeast

4.9

WELCOME PACK £5000 + 500 Free Spins

0-24h
99%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
500 Free Spins 20%Cashback
Get Bonus!
6

Win Place

4.8

Welcome Bonus 100% up to £4,000 + 100 FREESPINS

0-12hrs
98%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
700 Free Spins 20%Cashback
Get Bonus!
Bronze Casino
7

Velobet

4.8

700% + Up to 7500€ 1000 FREESPINS +25% Cashback

0-Instant
98%
€10
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
1000 Free Spins 20%Cashback
Get Bonus!
8

AmunBet

4.8

Welcome Package 450% To £3000 + 450 FS

0-24h
99%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
450 Free Spins 20%Cashback
Get Bonus!
9

Rivo Casino

4.7

Welcome Package 1000% up to £10,000

0-24h
100%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
20%Cashback
Get Bonus!
10

LegionBet

4.7

125% Bonus up to £20,000 + 250 FREESPINS

0-4hrs
100%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
150 Free Spins 15%Cashback
Get Bonus!
11

SlotoSport

4.7

Welcome Package £12000 + 777 FS

0-Up to 3 days
100%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
100 Free Spins
Get Bonus!
12

ShelbyWin

4.6

6000 EUR + 500 FREESPINS + 20% Cashback

0-12 hrs
100%
€10
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
50 to 100 Free Spins 10%Cashback
Get Bonus!
13

Lilu Casino

4.6

Welcome Package 325% Up to £3750 + 500 FS

0-24h
99%
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
500 Free Spins 20%Cashback
Get Bonus!
14

CleanWins

4.6

Welcome Bonus 200% up to 2000£ + 200 FS

0-24h
99%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
200 Free Spins 20%Cashback
Get Bonus!
15

7Gear

4.5

Welcome Reward Up To £5000 + 500 FS

0-24h
100%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
500 Free Spins
Get Bonus!
16

Atefia

4.5

Welcome Package 100% up to £1000 + 200 FS

0-24h
99%
€20
Verified
  • MC
  • Pay
  • VISA
  • BTC
  • ETH
  • USDT
  • LTC
200 Free Spins 20%Cashback
Get Bonus!

Important Transparency Notice for UK Readers

Hidden Jack does not hold a UK Gambling Commission licence. For UK readers, that means the brand operates outside UKGC oversight, so UK dispute routes, UK licence-condition checks, and the UK self-exclusion route do not apply in the same way they do at UK-licensed operators.

This matters more than usual for Hidden Jack. The site itself discloses no corporate owner in its terms, referring to itself only as "The Company", but a regulator has named the operator. In its decision published on 10 March 2026, the Netherlands gambling authority, the Kansspelautoriteit, imposed a 1,795,000 euro sanction on Fortaprime SRL for offering gambling to Dutch players without authorisation. The decision lists hiddenjack.com alongside seven other domains and became final after no objection was filed.

One important limit applies to that evidence. The regulator documented Fortaprime SRL as the operator during its investigation; it does not, on its own, prove that every one of those eight domains is still under the same company today, so current ownership is checked brand by brand below. Players comparing the Hidden Jack casino UK position with Regal Wins sister sites or other UK-facing pages should read this as a regulatory warning rather than a bonus-led shopping exercise. These sites can look familiar in design and banking, but a UKGC-licensed casino remains the safer route for equivalent player-protection standards.

Comparison of Sites Like Hidden Jack

The genuine sister sites of Hidden Jack are the other casinos named in the same Kansspelautoriteit decision. The five profiled below — Kaasino, Supraplay, Bilucky, GXSpins and Amonbet — were all documented as Fortaprime SRL brands, not loosely chosen lookalikes. A sixth domain, LuckyMax7, exists but is not profiled here. Safety Index figures are the current Casino Guru scores at the time of writing, and where a brand's current owner now differs from the regulator record, that is flagged in its profile.

Brand Our Rating Welcome Bonus Payout Speed Top Feature
Kaasino Caution 100% up to €3,000 and up to 500 spins listed Not published Highest current Casino Guru Safety Index in the set at 7.1/10
Supraplay Caution Tiered; first deposit 100% up to €250 and 200 spins Not published No relevant complaints logged by Casino Guru
GXSpins High risk Not confirmed from current third-party data Not published Runs without a licence; €5,000 daily withdrawal cap
Bilucky High risk Deposit-match offers listed; €20 minimum deposit Not published; €4,000 daily withdrawal limit Below-average safety and terms flagged as unfair
Amonbet Avoid Tiered; 100% up to €1,000 and 100 spins listed Not published; heavy withdrawal complaints 2.5/10 safety; closed to new players; owner now conflicts

Kaasino – The Highest-Rated Hidden Jack Sister Site by Safety Index

Kaasino is the highest-rated of the profiled brands on current data, so anyone searching Kaasino sister sites lands on the least-poor score in this set. Casino Guru currently gives Kaasino a 7.1/10 Above average Safety Index, well above Hidden Jack's 1.9/10, and links it to the Fortaprime SRL network documented by the Dutch regulator.

The reported welcome offer is a 100% deposit match up to 3,000 euros plus up to 500 free spins, with wagering that Casino Guru elsewhere describes as high and sometimes applied to bonus plus deposit. That is well above the UK statutory 10x wagering cap, which is one reason the headline can look larger than it plays. Casino Guru's main review found no relevant complaints against the current Safety Index, though a self-exclusion complaint was logged and closed in 2026, so "no complaints at all" would overstate it.

Among sites like Hidden Jack, Kaasino shows why a higher score still is not the same as regulatory protection: it relies on a Costa Rica registration, not a recognised gambling licence, and offers none of the dispute routes a UK licence provides. Readers cross-checking Donbet alternatives should apply the same test — licence and dispute route first, bonus headline second.

Kaasino Snapshot

Metric Detail
Operator Fortaprime SRL per the 2026 regulator record
Licence Costa Rica registration; no recognised gambling-regulator licence
Safety Index Casino Guru 7.1/10, Above average (current)
Welcome bonus 100% up to €3,000 and up to 500 spins listed; high wagering
Banking €20 minimum deposit reported; cards, bank transfer and crypto
Safety note Highest score in the set, but unlicensed and network-linked

Supraplay – A Confirmed Fortaprime Hidden Jack Sister Site

Supraplay is a confirmed same-operator brand and one of the better-documented Supraplay sister sites in the group, though it is no longer the top score once the numbers are refreshed. Casino Guru currently gives Supraplay a 6.8/10 Safety Index — above Hidden Jack's 1.9/10 but below Kaasino's 7.1/10 — with no relevant complaints and no listing on major casino blacklists at the time of writing.

Its bonus is tiered rather than a single large headline. Casino Guru's current data lists a first-deposit 100% up to 250 euros plus 200 spins, followed by smaller percentage top-ups on later deposits, with a 20 euro minimum deposit. The wagering, maximum bet, game weighting and conversion cap all need reading before you opt in, because the value depends far more on those terms than on the tier headlines. Casino Guru also flagged some terms as unfair during its review, and Supraplay again relies on a Costa Rica registration rather than a licence.

For a player weighing Supraplay against Hidden Jack itself, the honest summary is that Supraplay is better documented but still unlicensed and inside the same regulator-sanctioned network. If you are also weighing Mega Casino sister sites with stronger public paperwork, Supraplay's score should not be mistaken for UK-style regulatory protection.

Supraplay Snapshot

Metric Detail
Operator Fortaprime SRL per the 2026 regulator record
Licence Costa Rica registration; no recognised gambling-regulator licence
Safety Index Casino Guru 6.8/10 (current)
Welcome bonus Tiered; first deposit 100% up to €250 and 200 spins; smaller top-ups
Banking €20 minimum deposit reported; cards, bank transfer and crypto
Safety note No relevant complaints, but unfair terms flagged and unlicensed

GXSpins – A Bonus-Led Hidden Jack Alternative in the Same Network

GXSpins, listed by Casino Guru as GxSpin, is the network brand most associated with large bonus marketing, and searches for GXSpins sister sites lead straight back to the same Fortaprime SRL record. Casino Guru currently gives it a 6.4/10 Below average Safety Index, names Costa Rica business registration 3-102-891738, and states plainly that the casino operates without a licence, so no licensing authority can help in a dispute.

One figure is widely misread and worth correcting. GxSpin's 5,000 euro number is a daily withdrawal limit, not a maximum cashout or win cap: Casino Guru lists withdrawal limits of 5,000 euros daily, 10,000 euros weekly and 15,000 euros monthly, with no separate win limit. A current, dated welcome-bonus package could not be confirmed from third-party data at the time of writing, so this guide does not state one as fact. That gap is itself the point of the Hidden Jack sister sites no deposit bonus question: a headline is not value until the licence, terms and cashout rules are all checked.

GXSpins is therefore a good example of why bonus-led offshore brands need the most scrutiny, not the least. Players drawn to free-spin headlines should read no-deposit free spins offers with the same care they would apply to a large match bonus. Note that a clean homepage screenshot for GXSpins could not be sourced, so no image is shown for this brand.

GXSpins Snapshot

Metric Detail
Operator Fortaprime SRL per the 2026 regulator record; Costa Rica reg 3-102-891738
Licence Operates without a licence (Casino Guru)
Safety Index Casino Guru 6.4/10, Below average (current)
Welcome bonus Not confirmed from current third-party data
Withdrawal limits €5,000 daily, €10,000 weekly, €15,000 monthly; no win limit
Safety note Unlicensed; bonus marketing outruns its verifiable data

Bilucky – A Below-Average Site Like Hidden Jack

Bilucky is another regulator-documented brand, and among the Bilucky sister sites in the group it is one of the clearer profiles for banking limits even though its safety picture is below average. Casino Guru currently assigns Bilucky a 6.3/10 Below average Safety Index and considers some of its terms unfair.

The useful detail is on withdrawal caps rather than payout speed. Casino Guru lists withdrawal limits of 4,000 euros daily, 16,000 euros weekly and 50,000 euros monthly; an earlier claim of a fixed 72-hour payout is not supported by the current profile and has been removed. Its complaint record needs a qualification too: the summary shows no complaints counted against the Safety Index, but the detailed table contains nine cases, four resolved and five rejected. Casino Guru currently labels Bilucky's owner as undisclosed, so Fortaprime ownership here is established for the regulator's investigated period rather than reconfirmed for today.

For a player using Bilucky as a Hidden Jack alternative, the trade-off is clear: clearer published withdrawal limits, but the same absence of a recognised licence. If your comparison starts with a specific deposit route, checking the equivalent detail at brands such as Siru Mobile deposit casinos is a sensible cross-reference.

Bilucky Snapshot

Metric Detail
Operator Fortaprime SRL per the 2026 regulator record; owner shown as undisclosed on current Casino Guru
Licence Costa Rica registration; no recognised gambling-regulator licence
Safety Index Casino Guru 6.3/10, Below average (current)
Welcome bonus Deposit-match offers listed; €20 minimum deposit
Withdrawal limits €4,000 daily, €16,000 weekly, €50,000 monthly
Safety note Nine complaints in detail (four resolved, five rejected); unfair terms flagged

Amonbet – The Highest-Risk Brand, Now Closed to New Players

Amonbet is the clearest cautionary case, and it also shows why current ownership must be checked separately from the regulator record. The Kansspelautoriteit documented Amonbet under Fortaprime SRL, but Casino Guru now names AMO GLOBAL S.R.L. as the owner and states that Amonbet is not accepting new players — so the Amonbet sister sites picture is one of conflicting or changed ownership, not a simple confirmed sister.

The safety data is the worst in the set. Casino Guru gives Amonbet a 2.5/10 Very low Safety Index and strongly advises players to avoid it, logging around 26 complaints directly plus 15 about related casinos, and a detailed table of 52 total cases including 25 unresolved. Recurring themes include blocked bonuses tied to account issues, a self-exclusion request that was not honoured, and withdrawal problems. Its bonus data also conflicts: the site homepage still advertises up to 3,000 euros, while Casino Guru's current listing shows smaller tiered offers of 100% up to 1,000 euros plus 100 spins — a gap that is itself a caution.

Because Amonbet is closed to new registrations and its ownership no longer matches the regulator record, it is not a usable destination for a UK player today; it is included here for network completeness and as a warning. For contrast on regulatory footprint, comparing sites like Mr Vegas shows how different a UK-regulated brand's dispute route looks.

Amonbet Snapshot

Metric Detail
Operator Fortaprime SRL per the regulator record; AMO GLOBAL S.R.L. on current Casino Guru (conflict)
Licence No recognised gambling-regulator licence
Safety Index Casino Guru 2.5/10, Very low — advises avoid; closed to new players
Welcome bonus Site advertises up to €3,000; Casino Guru lists 100% up to €1,000 and 100 spins (conflict)
Complaints ~26 direct plus ~15 related; 52 cases in detail, 25 unresolved
Safety note Worst score in the set; changed/conflicting ownership

How We Tested These Hidden Jack Sister Sites

We started from a regulator source and then separated historical evidence from current status. The Kansspelautoriteit sanction decision against Fortaprime SRL names hiddenjack.com and seven sibling domains — Amonbet101, Supraplay, Amonbet, Bilucky, GXSpins, Kaasino and LuckyMax7 — so those brands form the genuine Hidden Jack sister companies documented here. Because ownership can change after an investigation, we then checked each brand's current Casino Guru profile rather than assuming the 2024 picture still holds.

To keep the evidence honest, each claim in this guide sits in one of a few tiers: regulator-documented (the KSA operating relationship during its investigation); current third-party profile (live Casino Guru data for safety, complaints, bonuses and limits); operator-claimed (figures shown on a brand's own site); and conflicting or unverifiable, used where sources disagree — as with Amonbet's owner — or where a figure could not be confirmed. "Not published" means we found no reliable current source and chose not to guess.

Hidden Jack vs Its Sister Sites

Hidden Jack has a larger public data trail than most of its siblings, but not a better safety picture. Casino Guru gives Hidden Jack a 1.9/10 Very low Safety Index, records 8,555 black points, and its detailed table lists seven cases — one open, three unresolved, one resolved and two rejected. Its summary attributes the 8,555 black points to a smaller number of high-value complaints, so the summary and detail views count complaints differently, which is worth knowing before quoting a single figure. Casino Guru also states that, to its knowledge, Hidden Jack holds no gambling licence, and it flags the undisclosed owner as a negative.

On product depth, Casino Guru reports 11 payment options for Hidden Jack — Mastercard, Visa, bank transfer, online bank transfer and crypto among them — plus withdrawal limits up to 4,000 euros per day, 8,000 euros per week and 30,000 euros per month, and around 86 game providers with mobile and app access.

Set against the documented siblings, the phrase Hidden Jack casino sister casinos is best read carefully: these are brands a regulator tied to one operator in 2024, with current Casino Guru scores ranging from Kaasino's 7.1/10 down to Amonbet's 2.5/10 and Hidden Jack's 1.9/10 — and at least one, Amonbet, whose current owner no longer matches. None of them replaces a UK licence. Players comparing casinos similar to Tombola Arcade for stronger oversight will find a very different regulatory profile.

New Fortaprime SRL Casinos in 2026

The most significant 2026 development for the Fortaprime SRL casinos is not a launch but a sanction. The Kansspelautoriteit's 1,795,000 euro decision, published on 10 March 2026, documented the shared operator behind Hidden Jack and its siblings during the regulator's investigation and recorded that the sites had no technical measures to block Dutch players. That is the single most decision-relevant fact for anyone researching this network.

Beyond the eight named domains — Hidden Jack, Amonbet101, Supraplay, Amonbet, Bilucky, GXSpins, Kaasino and LuckyMax7 — we found no reliable evidence of a wider, separately owned portfolio. What the 2026 data does show is that the network is not static: Amonbet's current Casino Guru profile lists a different owner and a closed-to-new-players status, so the Fortaprime SRL sister sites should be treated as a regulator-documented group whose individual ownership is reconfirmed brand by brand.

Payment Methods Across the Fortaprime SRL Network

Hidden Jack has the fullest reported cashier of the group, while several siblings share a 20 euro minimum deposit and publish their own withdrawal caps. The table below uses Hidden Jack's reported payment landscape and marks network-level figures where a sibling has published them.

Method Min Deposit Max Deposit Withdrawal Time Fees
Visa €20 network minimum reported Not published Not published Not published
Mastercard €20 network minimum reported Not published Not published Not published
Bank transfer Not published Not published Not published Not published
Online bank transfer Not published Not published Not published Not published
Bitcoin Not published Not published Not published Network fees may apply; not published by brand
Ethereum Not published Not published Not published Network fees may apply; not published by brand
Tether Not published Not published Not published Network fees may apply; not published by brand
Litecoin / Dogecoin / Bitcoin Cash Not published Not published Not published Network fees may apply; not published by brand

Game Providers at Hidden Jack Sister Sites

Hidden Jack has the strongest published games data in the group. Casino Guru lists around 86 providers, including major slot studios and live-casino suppliers. For the siblings, current per-brand provider lists and game counts are not published in a form we could verify, and shared regulator-documented ownership does not by itself prove an identical current games catalogue, so those cells are marked honestly rather than filled from Hidden Jack's figure.

Site Top 5 Providers Approx. Game Count Live Dealer Available
Hidden Jack NetEnt, Nolimit City, Evolution, Pragmatic Play, Yggdrasil 86 providers reported; game count not published Yes, live games reported
Kaasino Not published in a verifiable current list Not published Reported
Supraplay Not published in a verifiable current list Not published Reported
GXSpins Not published in a verifiable current list Not published Reported
Bilucky Not published in a verifiable current list Not published Reported
Amonbet Not published in a verifiable current list Not published Reported

Safety, Licensing and Regulation

The core safety issue is not simply that Hidden Jack sits outside UKGC oversight. It is the combination of no UKGC licence, no owner disclosed on the site, no recognised gambling licence anywhere, Casino Guru's 1.9/10 Very low Safety Index, and a regulator sanction against the operator. Casino Guru firmly advises players to avoid Hidden Jack and choose higher-rated alternatives.

Operator attribution comes from that regulator record, with one caveat. The Kansspelautoriteit's 2026 decision named Fortaprime SRL, based in Costa Rica, as the company behind Hidden Jack and its siblings during its investigation; current third-party data still matches for most brands but not all, since Amonbet's current profile lists AMO GLOBAL S.R.L. instead. Costa Rica is important context in either case: it runs no formal iGaming licensing regime, issues no gambling licences, keeps no public register, and provides no player dispute mechanism, so a Costa Rica base is closer to a business registration than a gambling licence.

Responsible-gambling tools are also harder to trust here. A UKGC-licensed operator must follow UK licence conditions on safer gambling, identity checks, customer interaction, complaint handling and self-exclusion. Across this network those obligations do not apply, and Amonbet's record includes a self-exclusion request that was not honoured. Players comparing PlayOJO alternatives for stronger transparent controls should treat that difference as central, not secondary.

Safety and Licensing Summary

Site Licence Body Licence No. Responsible Gambling Tools RNG Testing
Hidden Jack None recognised; Costa Rica base (Fortaprime SRL) Not issued / not published Not verified; no UK self-exclusion route Not published
Kaasino None recognised; Costa Rica base (Fortaprime SRL) Not issued / not published Not verified Not published
Supraplay None recognised; Costa Rica base (Fortaprime SRL) Not issued / not published Not verified; unfair terms flagged Not published
GXSpins Operates without a licence (Fortaprime SRL) Not issued / not published Not verified Not published
Bilucky None recognised; Costa Rica base (owner undisclosed on current profile) Not issued / not published Not verified; unfair terms flagged Not published
Amonbet None recognised; owner now shown as AMO GLOBAL S.R.L. Not issued / not published Self-exclusion complaint recorded; closed to new players Not published

Common Complaints and Issues

Hidden Jack's complaint profile is the central warning. Casino Guru records 8,555 black points and a detailed table of seven cases, three of them unresolved, with themes including closed accounts, withheld winnings, delayed withdrawals, document rejection and disputed licensing claims. The high black-point total relative to a small case count signals that some individual disputes carried significant value.

Trustpilot is more positive overall, showing a 3.9 TrustScore from 620 reviews in July 2026, but the reviews are genuinely mixed. Alongside quick-withdrawal and helpful-support reports, players describe payment delays, missing deposits, account-closure difficulty and unclear bonus handling. The split matters: a healthy-looking star average can sit next to unresolved high-value disputes on a specialist database.

Amonbet extends the pattern across the network, with a 2.5/10 score, a detailed table of 52 cases including 25 unresolved, and a self-exclusion request that was not honoured. Across these brands the repeated risk areas are the same — withdrawals, verification timing, account closure, and the absence of any licensing authority to escalate to.

What Users Say: Hidden Jack Sister Sites Reviews

The Hidden Jack review picture depends heavily on the source. Trustpilot reviewers often praise game variety, an easy website and some fast payouts, while negative reviews focus on payment processing, deposits not appearing and account closure. Casino Guru is far more severe, with a 1.9/10 Safety Index and a direct recommendation to avoid.

For the wider group, sentiment is thin on the smaller brands but consistent in theme where it exists. Kaasino's and Supraplay's cleaner complaint records contrast sharply with Amonbet's heavy load and closed status, a reminder that same-network brands do not all behave identically. Player forum posts should be treated as leads rather than proof, because individual accounts are hard to verify. Searches around casinos like Mr Vegas will show how different the sentiment picture looks when a brand carries a deeper UK-regulated footprint.

Source What Players Praise What Players Criticise
Trustpilot, Hidden Jack, July 2026: 3.9/5 from 620 reviews Game selection, easy website, helpful support, some fast payout reports Payment delays, deposits not appearing, account-closure concerns, bonus activation issues
Casino Guru, Hidden Jack: 1.9/10 Very low Safety Index Support availability, complex bonus and loyalty system, mobile app No licence known, undisclosed owner, 8,555 black points, three unresolved complaints
Casino Guru, Amonbet: 2.5/10 Very low Safety Index Little current praise; closed to new players 52 cases with 25 unresolved, self-exclusion not honoured, withdrawal disputes

Bonus and Wagering Requirements at Sites Like Hidden Jack

Hidden Jack's listed bonuses include multiple deposit offers up to around 1,000 dollars with extra spins, but the value depends on wagering, game weighting, maximum bet and maximum conversion rules. The confirmed siblings sit in the same offshore range: Kaasino at 100% up to 3,000 euros with high wagering, Supraplay with tiered first-deposit offers, and Amonbet with 100% up to 1,000 euro tiers on its current Casino Guru listing. None publishes a no-deposit headline that survived checking here, so a Hidden Jack sister sites no deposit bonus search should be handled sceptically.

A worked example shows why headline percentages are not enough. UKGC-licensed operators are subject to the 10x wagering cap in Social Responsibility Code 5.1.1, effective 19 January 2026. These brands are not UK-licensed, so their high wagering multiples sit far above that ceiling. The example below uses a 40x multiple, common at this kind of casino, to show the difference.

Step Value
Deposit £100
Bonus match 100%, giving £100 bonus funds
10x UKGC-capped example £1,000 wagering on the bonus amount
40x offshore-style example £4,000 wagering on the bonus amount
Key check Whether wagering applies to bonus only or deposit plus bonus

How to Choose the Right Sister Site

Start with the licence and operator, not the bonus. A good Hidden Jack alternative should publish a named legal entity, a licence body, a checkable licence number, clear withdrawal limits, and terms that explain KYC, account closure and bonus restrictions before you deposit. Across this network those boxes are mostly unticked, which is why every profiled brand here carries a caution or higher-risk rating even where the bonus looks generous.

You should also complete your KYC verification immediately after registration so any later withdrawal is not delayed. Keep deposits modest, avoid accepting a bonus until you have read the wagering table, and set account limits before you play. Remember that UK protections do not follow you to a Costa Rica registration, so a same-operator sister is a comparison point, not a safety upgrade.

Which Hidden Jack Sister Site Is Best?

On current evidence there is no Fortaprime brand we would recommend to a UK player, because none holds a recognised gambling licence and every one is tied to a regulator-sanctioned network. If the question is narrowed to which scores highest right now, the best Hidden Jack sister site by Casino Guru Safety Index is Kaasino at 7.1/10, followed by Supraplay at 6.8/10, then GXSpins at 6.4/10 and Bilucky at 6.3/10, with Amonbet last at 2.5/10 and closed to new players.

That ranking is a relative measure, not an endorsement. Even the best Hidden Jack sister site in this set relies on a Costa Rica registration and offers no UK dispute route. Amonbet is the clearest cautionary example — a big advertised bonus sitting beside the worst safety score and a changed, conflicting owner — while Supraplay and Kaasino are simply the least-poor comparison points.

For a risk-led player, the honest conclusion is that the sister sites of Hidden Jack are best treated as research rather than recommendations, and a UKGC-licensed casino is the benchmark to beat before any of them is worth a deposit.

Final Verdict: Are Hidden Jack Similar Sites Worth It?

Hidden Jack similar sites are worth researching only if the first question is safety, not bonus size. Hidden Jack itself carries major concerns: no UKGC licence, no owner disclosed on-site, no recognised gambling licence, Casino Guru's 1.9/10 Very low Safety Index, 8,555 black points, unresolved complaints, and an operator, Fortaprime SRL, sanctioned by the Dutch regulator in 2026.

The honest verdict is that this network is not a strong route for UK players seeking UK-style protections. Kaasino is the highest-scoring confirmed brand today, but it, Supraplay, GXSpins, Bilucky and Amonbet all share the same unlicensed, Costa Rica–linked structure, and Amonbet is already closed to new players with a conflicting current owner. For most UK readers, a UKGC-licensed casino is the safer benchmark. Support is available — contact GamCare (freephone 0808 8020 133) or visit GambleAware, and complete your KYC verification immediately after registration wherever you play.

Frequently Asked Questions

What are Hidden Jack sister sites?+
They are casinos the Dutch regulator documented under the same operator as Hidden Jack, Fortaprime SRL, in its 2026 decision: Amonbet, Supraplay, Bilucky, GXSpins, Kaasino and LuckyMax7. Current ownership should still be checked per brand, as Amonbet's now differs.
Are Hidden Jack sister sites UKGC licensed?+
No. Hidden Jack and every profiled sibling operate on a Costa Rica registration with no recognised gambling licence and no UKGC oversight. UK players who want UK licence protections should choose a UKGC-licensed operator instead.
Which Hidden Jack sister site is rated highest right now?+
Kaasino currently has the highest Casino Guru Safety Index in the set at 7.1/10, ahead of Supraplay at 6.8/10. Amonbet is the worst at 2.5/10 and is closed to new players. None matches the protection of a UKGC-licensed casino.
Why is Hidden Jack rated so low?+
Casino Guru gives Hidden Jack a 1.9/10 Very low Safety Index, citing no known licence, an undisclosed owner, 8,555 black points and unresolved complaints. Its operator, Fortaprime SRL, was also fined by the Dutch regulator in 2026 for unauthorised gambling.
Do Hidden Jack sister sites share KYC or self-exclusion?+
There is no verified shared KYC or self-exclusion across the network, and Amonbet has a complaint on record for a self-exclusion request that was not honoured. Do not assume documents, limits or closure requests carry between brands; verify early and set limits on each account.