Important Transparency Notice for UK Readers
Before reviewing Viggoslots sister sites, UK-based readers need critical safety information. Viggoslots never held a UK Gambling Commission licence. According to FruitySlots (April 2026), Viggoslots "withdrew from the UK market in October 2023 and is no longer accessible to British players." The same source issues a direct warning: "the domain may have been repurposed by unrelated parties — always verify any gambling site's UKGC credentials before depositing." This domain-repurposing risk means that any site currently displaying at viggoslots.com may not be operated by Mountberg B.V. at all. Viggoslots casino UK players were never protected by GamStop, UKGC dispute resolution, mandated fund segregation, or UK affordability checks. BetBond does not recommend UK residents use casinos that cannot be verified on the UKGC public register. For UK players seeking regulated wager-free alternatives (Viggoslots' signature feature), UKGC-licensed casinos such as those covered in our PlayOJO sister sites guide provide zero-wagering promotions under domestic consumer protections.
Comparison of Sites Like Viggoslots
The table below profiles five Viggoslots sister sites from the Mountberg B.V. network. Viggoslots casino sister casinos all share the same Curaçao licensing structure. None hold UKGC licences. UK players should consider exclusively UKGC-licensed operators as alternatives.
| Brand | Our Rating | Welcome Bonus | Payout Speed (E-Wallets) | Top Feature |
|---|---|---|---|---|
| Viggoslots (not UKGC) | 2.3/5 | €1,000 + 170 FS wager-free (3 deposits, min €20) | 24–48 hours (Skrill/Neteller) | Wager-Free Bonuses with 3,500–6,900 Games |
| Stakes Casino (not UKGC) | 2.8/5 | 100% up to €400 (verify wagering on site) | 24–48 hours (e-wallets) | Most Established Active Mountberg Brand |
| Kahuna Casino (not UKGC) | 2.5/5 | Verify on site | 24–48 hours (e-wallets) | Hawaiian Theme with Daily Promotions |
| Mucho Vegas (not UKGC) | 2.5/5 | Verify on site | 24–48 hours (e-wallets) | Vegas Theme Launched 2016 |
| Sticky Wilds (not UKGC) | 2.5/5 | 100% up to €400 + 200 FS (verify on site) | 24–48 hours (e-wallets) | Bonus-Heavy Brand with Deep Promotional Calendar |
| Azur Casino (not UKGC) | 2.5/5 | €500 + 20 FS (40x wagering) | 24–48 hours (e-wallets) | Elegant Land-Based Casino Aesthetic |
None of the brands above hold UKGC licences. Several Mountberg brands have closed in recent years (Royal Rabbit April 2022, Casino Ventura 2023). UK players should use exclusively UKGC-licensed platforms.
Stakes Casino – Most Established Viggoslots Sister Site
Stakes Casino is the most established active brand in the Mountberg B.V. portfolio with approximately 2,000 games from 28+ providers. The site shares the same Curaçao licence 1668/JAZ as Viggoslots. Unlike Viggoslots' wager-free model, Stakes Casino applies standard wagering to its welcome bonus — verify current terms on site. For players evaluating the Mountberg network, Stakes Casino carries the broadest independent review footprint among the active brands.
The Stakes Casino sister sites encompass the full Mountberg B.V. portfolio. The best Viggoslots sister site within the Mountberg network by operational track record is Stakes Casino. Players exploring UKGC-licensed casino networks can review All British Casino sister sites for an L&L Europe comparison with zero UKGC enforcement actions.
Stakes Casino Review
| Metric | The Stakes Casino Experience |
| Site Identity | Most established active Mountberg brand with 2,000+ games (Curaçao licence) |
| Standout Mechanic | Broadest independent review data in the Mountberg portfolio |
| Game Edge | 2,000+ games from 28+ providers including NetEnt, Evolution, Microgaming |
| Payout Speed | 24–48 hours for e-wallets, longer for bank transfers |
| The Trade-Off | No UKGC licence, standard wagering (unlike Viggoslots' wager-free model) |
| Best For | International players who want the most established Mountberg brand |
Kahuna Casino – Top Site Like Viggoslots for Themed Daily Promotions
Kahuna Casino uses a Hawaiian tiki theme with a daily promotional rotation — a different offer for each day of the week including free spins on Wednesdays and matched deposits on Mondays. The site shares the same Mountberg B.V. Curaçao licence as Viggoslots. For players who valued Viggoslots' Monday Cash Spins and Friday Cashback promotional rhythm, Kahuna Casino delivers the closest daily-rotation promotional model in the Mountberg family.
The Kahuna Casino sister sites encompass the full Mountberg portfolio. Sites like Viggoslots from the same operator that offer daily promotional variety should start with Kahuna Casino. Mountberg sister sites share the same Curaçao licensing across every brand. Players exploring UKGC-licensed alternatives with strong promotional calendars can review Gala Spins sister sites for an Entain comparison under verified UK regulation.
Kahuna Casino Review
| Metric | The Kahuna Casino Experience |
| Site Identity | Hawaiian tiki-themed Mountberg brand with daily promotional rotation (Curaçao licence) |
| Standout Mechanic | Different promotional offer for each day of the week |
| Game Edge | Shared Mountberg library with standard slot, live dealer, and table coverage |
| Payout Speed | 24–48 hours for e-wallets, longer for bank transfers |
| The Trade-Off | No UKGC licence, same Curaçao licensing concerns as all Mountberg brands |
| Best For | International players who want daily themed promotions from the Mountberg network |
Mucho Vegas – Best Viggoslots Alternative for Vegas Nostalgia
Mucho Vegas launched in 2016 and carries a colourful Latin-Vegas aesthetic with progressive jackpots from Pragmatic Play's Drops and Wins series. The site shares the same Mountberg B.V. Curaçao licence as Viggoslots. For players who want a Vegas-themed experience within the Mountberg network, Mucho Vegas provides the most distinctive entertainment branding in the family.
The Mucho Vegas sister sites encompass the full Mountberg portfolio. Viggoslots alternative options within the Mountberg network that combine Vegas nostalgia with Drops and Wins jackpots should consider Mucho Vegas. Players exploring UKGC-licensed Vegas-themed alternatives can review Sun Vegas sister sites for a Flutter-owned comparison or check LeoVegas Casino sister sites for an MGM-owned alternative under UK regulation.
Mucho Vegas Review
| Metric | The Mucho Vegas Experience |
| Site Identity | Latin-Vegas-themed Mountberg brand launched 2016 (Curaçao licence) |
| Standout Mechanic | Vegas nostalgia with Drops and Wins progressive jackpots |
| Game Edge | Shared Mountberg library with Pragmatic Play jackpot integration |
| Payout Speed | 24–48 hours for e-wallets, longer for bank transfers |
| The Trade-Off | No UKGC licence, same Curaçao framework as all Mountberg brands |
| Best For | International players seeking Vegas entertainment from the Mountberg family |
Sticky Wilds – Best Similar Site to Viggoslots for Bonus Volume
Sticky Wilds Casino offers one of the most bonus-heavy welcome packages in the Mountberg B.V. portfolio with 100 percent up to €400 plus 200 free spins (verify current wagering terms on site). The site shares the same Curaçao licence as Viggoslots. For players who valued Viggoslots' generous welcome volume (€1,000 plus 170 free spins), Sticky Wilds provides comparable headline generosity, though with standard wagering attached rather than Viggoslots' wager-free model.
The Sticky Wilds sister sites encompass the full Mountberg portfolio. Viggoslots similar sites within the Mountberg network that match its bonus headline volume should consider Sticky Wilds. Players exploring UKGC-licensed casinos can also check Genting Casino sister sites for a dual land-based and online experience under Skill On Net Limited (UKGC 39326).
Sticky Wilds Review
| Metric | The Sticky Wilds Experience |
| Site Identity | Bonus-heavy Mountberg brand with generous welcome volume (Curaçao licence) |
| Standout Mechanic | 100% up to €400 + 200 FS — closest headline match to Viggoslots' volume |
| Game Edge | Shared Mountberg library with standard provider pool |
| Payout Speed | 24–48 hours for e-wallets, longer for bank transfers |
| The Trade-Off | Standard wagering (unlike Viggoslots' wager-free), no UKGC licence |
| Best For | International players who want maximum bonus volume from the Mountberg network |
Azur Casino – Best Viggoslots Sister Site for Elegant Design
Azur Casino launched in 2020 with an elegant land-based casino aesthetic that evokes classic European gaming halls. The welcome offer provides €500 plus 20 free spins with 40x wagering. The site shares the same Mountberg B.V. Curaçao licence as Viggoslots. For players who found Viggoslots' minimalist design appealing, Azur Casino provides the most visually sophisticated alternative in the Mountberg family.
The Azur Casino sister sites encompass the full Mountberg portfolio. Viggoslots sister companies within the Mountberg ecosystem all share the same Curaçao licensing framework. Players exploring UKGC-licensed elegant casino alternatives can review Generation VIP sister sites for a different operator perspective, or check Heats Casino sister sites for additional offshore comparisons.
Azur Casino Review
| Metric | The Azur Casino Experience |
| Site Identity | Elegant European-styled Mountberg brand launched 2020 (Curaçao licence) |
| Standout Mechanic | Most visually sophisticated design in the Mountberg portfolio |
| Game Edge | 4,000+ games with NetEnt, Betsoft, Evolution, and 40+ providers |
| Payout Speed | 24–48 hours for e-wallets, longer for bank transfers |
| The Trade-Off | 40x wagering (unlike Viggoslots' wager-free), no UKGC licence |
| Best For | International players who want elegance and depth from the Mountberg network |
How We Assessed These Viggoslots Alternatives
This Viggoslots review assessed each profiled site through Curaçao licence cross-referencing, Mountberg B.V. network analysis, independent review data from FruitySlots, SisterSite.co.uk, MrGamble, A2ZUKCasinoSites, and OnlineCasinoGroups. This Viggoslots casino review confirmed that all five profiled brands share the same Mountberg B.V. operator structure and Curaçao eGaming licence 1668/JAZ. This Viggoslots casino review notes that FruitySlots describes Viggoslots as "permanently closed" to UK players since October 2023 and warns that "the domain may have been repurposed by unrelated parties." Multiple Mountberg brands have closed in recent years (Royal Rabbit April 2022, Casino Ventura 2023), suggesting network contraction alongside the continuing operations.
Viggoslots vs Its Sister Sites
Viggoslots' defining feature was its wager-free bonus structure: three deposit bonuses totalling €1,000 plus 170 free spins on Starburst (or Gold Lab/Money Train where Starburst was unavailable), with no wagering requirements on winnings. The catch — and it is critical — is that the bonus money itself was never withdrawable. When a player requested a withdrawal, the bonus balance was deducted from their account. This means "wager-free" did not mean "free money" — it meant winnings generated from bonus play were kept, but the bonus funds themselves returned to Viggoslots. The game library ranged from 3,500 to 6,900 titles (sources vary significantly) from 50+ providers including NetEnt, Evolution, Microgaming, Big Time Gaming, Betsoft, Tom Horn, Ezugi, and Pragmatic Play. Viggoslots sister sites share the same shared Mountberg platform and Curaçao licensing but most apply standard wagering rather than the wager-free model. The sister sites of Viggoslots number 15 or more under Mountberg B.V., covering themes from Hawaiian (Kahuna) to Vegas (Mucho Vegas) to elegant (Azur).
Mountberg B.V. Network in 2026
Mountberg B.V. is registered at Fransche Bloemweg 4, Curaçao, with a Cyprus subsidiary (Mountberg Limited, HE 355350) at 67 Limassol Avenue, Vision Tower, Floor 2, Aglantzia, 2121, Nicosia. The company holds Curaçao licence 1668/JAZ (Curaçao eGaming master licence). The sister sites of Viggoslots under Mountberg B.V. include Stakes Casino, Kahuna Casino, Mucho Vegas, Sticky Wilds, Azur Casino, Ruby Vegas, Monte Cryptos, Lucky Luke, Play PCF, Dublin Bet, Happy Hugo, Casino Extra, and others. Mountberg casinos do not appear on the UKGC register. The network has contracted through closures: Royal Rabbit closed April 2022, Casino Ventura closed approximately 2023, and Viggoslots itself reportedly withdrew from the UK market in October 2023. Mountberg casinos collectively represent a Curaçao-licensed network with no UK regulatory coverage. Players interested in broader offshore market context can also explore Basswin sister sites for a different network comparison. Mountberg casinos use the shared Mountberg platform for game aggregation and payment processing.
Payment Methods at Viggoslots (When Active)
| Payment Method | Status | Notes |
|---|---|---|
| Visa / Mastercard | Available (when active) | Standard card processing |
| Skrill | Available (when active) — excluded from bonus | E-wallet, not bonus-eligible |
| Neteller | Available (when active) — excluded from bonus | E-wallet, not bonus-eligible |
| Trustly | Available (when active) | Bank transfer via Trustly |
| Bank Transfer | Available (when active) | Standard bank processing |
| Paysafecard / Cashlib | Available (when active) — excluded from bonus | Prepaid, not bonus-eligible |
A critical limitation: Skrill, Neteller, Paysafecard, and Cashlib deposits were excluded from bonus eligibility at Viggoslots. Players depositing via e-wallets received no welcome bonus. This exclusion applied network-wide across Mountberg brands. PayPal was not accepted. UK players using any platform without UKGC licensing forfeit consumer protections including enforceable dispute resolution. Players interested in UKGC-licensed casinos accepting e-wallets can explore Dr Slot sister sites for different operator payment options.
Game Providers at Viggoslots Sister Sites
| Site | Top 5 Providers | Approx. Game Count | Live Dealer Available |
|---|---|---|---|
| Viggoslots | NetEnt, Evolution, Microgaming, BTG, Pragmatic Play | 3,500–6,900 (sources vary) | Yes (Evolution, Ezugi, VIVO) |
| Stakes Casino | NetEnt, Evolution, Microgaming, Pragmatic, Fugaso | 2,000+ | Yes (Pragmatic Live, VIVO) |
| Kahuna Casino | Shared Mountberg provider pool | Varies by brand | Yes |
| Mucho Vegas | Shared Mountberg provider pool | Varies by brand | Yes |
| Sticky Wilds | Shared Mountberg provider pool | Varies by brand | Yes |
| Azur Casino | NetEnt, Betsoft, Evolution, Pragmatic Play, Red Tiger | 4,000+ | Yes (Evolution) |
Mountberg brands draw from 50+ providers through the shared Mountberg platform. Game counts vary substantially between brands — Viggoslots reportedly carried the largest library at 3,500–6,900 titles, while Stakes Casino offers approximately 2,000. The presence of recognised providers does not validate the operator's licensing status. UKGC-licensed competitors offer the same major providers under verified regulatory oversight.
Safety, Licensing and Regulation
Viggoslots and all Mountberg B.V. sister sites operate under Curaçao licence 1668/JAZ (Curaçao eGaming master licence). This is not a UKGC-recognised licence. Viggoslots never held a UKGC licence during its operational years and reportedly withdrew from the UK market in October 2023. FruitySlots specifically warns that "the domain may have been repurposed by unrelated parties," meaning any site currently displaying at the Viggoslots domain may not be operated by Mountberg B.V. The operator does not participate in GamStop, does not provide UKGC-enforceable dispute resolution, and is not required to segregate UK player funds. Player complaint data across multiple review platforms reports withdrawal delays, blocked payouts, and unsatisfactory support resolution at various Mountberg properties.
| Site | Licence Holder | UKGC Account | Regulatory Actions | ADR Provider |
|---|---|---|---|---|
| Viggoslots | Mountberg B.V. | Not on UKGC register | N/A (Curaçao only) | None verified |
| Stakes Casino | Mountberg B.V. | Not on UKGC register | N/A (Curaçao only) | None verified |
| Kahuna Casino | Mountberg B.V. | Not on UKGC register | N/A (Curaçao only) | None verified |
| Mucho Vegas | Mountberg B.V. | Not on UKGC register | N/A (Curaçao only) | None verified |
| Sticky Wilds | Mountberg B.V. | Not on UKGC register | N/A (Curaçao only) | None verified |
| Azur Casino | Mountberg B.V. | Not on UKGC register | N/A (Curaçao only) | None verified |
UK readers should use exclusively UKGC-licensed platforms. GamStop does not cover Viggoslots or any Mountberg B.V. brand. If disputes arise at a Curaçao-licensed casino, UK players have no regulatory recourse.
Common Complaints and Issues
Viggoslots' wager-free bonus was both its strongest selling point and its most misunderstood feature. The "wager-free" label attracted players who believed winnings were unconditionally withdrawable, but the critical detail — that the bonus funds themselves were deducted from the balance upon withdrawal — generated substantial complaint volume when players discovered their actual cashout was lower than expected. Beyond the bonus confusion, common complaints across the Mountberg network include delayed or blocked withdrawals (consistently reported across multiple review platforms), limited customer support quality, and the absence of PayPal and UKGC consumer protections. SisterSite.co.uk's assessment of Mountberg is blunt: "casinos that operate under a Curacao licence can't be relied upon to treat customers fairly." The network's closure pattern (Royal Rabbit, Casino Ventura, Viggoslots UK withdrawal) suggests operational instability alongside the continuing brands.
What Users Say: Viggoslots Reviews
| Source | What Players Praise | What Players Criticise |
|---|---|---|
| A2ZUKCasinoSites (2.3/5) | Bold UI, wager-free structure, 3,000–6,800 games | "Withdrawals appear problematic — delayed, restricted, or blocked" |
| FruitySlots (closure notice) | Stylish minimalist design, wager-free innovation | Closed to UK Oct 2023, domain repurposing risk |
| SisterSite.co.uk | Daily promotional variety, free spins Mondays | "Curacao licence can't be relied upon," no UKGC protection |
| SisterSitesIndex (active listing) | 4,500 games, wager-free welcome, 50+ providers | No UKGC licence, limited safety assurance |
The overall sentiment reflects a casino that innovated genuinely with its wager-free model but operated in a licensing environment that could not guarantee the protections UK players should expect.
Bonus and Wagering Requirements at Sites Like Viggoslots
Viggoslots' welcome package provided three wager-free deposit bonuses: first deposit 100 percent up to €400 plus 70 free spins on Starburst, second deposit 100 percent up to €300 plus 50 free spins, third deposit 100 percent up to €300 plus 50 free spins. The minimum deposit per tier was €20. The "wager-free" label meant winnings generated from bonus play were kept, but the bonus funds themselves were deducted upon withdrawal — not truly "free money." E-wallet deposits (Skrill, Neteller, Paysafecard, Cashlib) were excluded from bonus eligibility. Viggoslots sister sites no deposit bonus options were not widely available across the Mountberg network.
Here is a worked example: deposit €100 on the first deposit. The 100 percent match awards €100 in bonus funds plus 70 free spins on Starburst, giving a total playable balance of €200 (€100 cash plus €100 bonus). No wagering is required. However, when requesting a withdrawal, the €100 bonus balance is deducted. If the balance stands at €250 at withdrawal, only €150 is paid out (€250 minus the €100 bonus). The "wager-free" advantage is that no playthrough multiplication applies, but the bonus itself always returns to Viggoslots. The best Viggoslots sister site for bonus generosity is Sticky Wilds, though it applies standard wagering. For UK players seeking genuine zero-wagering under UKGC regulation, PlayOJO pays winnings as cash with no deductions. Players exploring broader UKGC-licensed options can also review no KYC casinos for additional market context.
How to Choose the Right Alternative
For UK-based readers, the choice is clear: use a UKGC-licensed platform. Viggoslots reportedly withdrew from the UK market in 2023, the domain may have been repurposed, and no Mountberg B.V. brand holds UKGC licensing. For international players evaluating the Mountberg network, Stakes Casino offers the broadest review footprint, Kahuna Casino delivers daily promotional variety, Mucho Vegas provides Vegas entertainment, Sticky Wilds matches Viggoslots' bonus volume, and Azur Casino supplies elegant design. Since all Viggoslots sister sites share the same Curaçao licensing, the underlying risk profile is identical regardless of theme.
Which Viggoslots Alternative Is Best for UK Players?
For UK players, BetBond recommends leaving the Mountberg B.V. network entirely and using a UKGC-licensed operator. PlayOJO under Skill On Net Limited (UKGC 39326) offers genuine zero wagering on every promotion — meaning winnings are paid as real cash with no deductions. Skill On Net carries its own UKGC enforcement record (£3.6 million in 2021 and £305,150 in May 2023), but the zero-wagering model and verified UKGC licensing still provide substantially stronger consumer protections than any Curaçao-licensed operator. The best Viggoslots sister site within the Mountberg network for international players is Stakes Casino, because its 2,000+ game library from 28+ providers and longer operating history provide the most documented player experience in the family.
Outside both networks entirely, All British Casino under L&L Europe Limited (UKGC 38758) provides 10 percent cashback with zero UKGC enforcement actions across a decade of UK operations. The sister sites of Viggoslots number 15 or more under Mountberg B.V., but none hold UKGC licences, making off-network UKGC-licensed alternatives the only responsible recommendation for UK readers.
Final Verdict: Are Viggoslots Similar Sites Worth It?
Viggoslots was a genuinely innovative casino that popularised wager-free bonuses at a time when most competitors attached heavy playthrough requirements to every promotion. The 3,500–6,900 game library from 50+ providers, the Monday Free Spins, the Friday Cashback, and the 5-tier VIP programme delivered a comprehensive experience for international players. This Viggoslots casino review acknowledges that the wager-free model represented a real contribution to the industry, even if the "bonus funds deducted on withdrawal" mechanic was widely misunderstood.
However, for UK readers, the concerns are disqualifying. Viggoslots never held a UKGC licence and reportedly withdrew from the UK market in October 2023. The domain may have been repurposed by unrelated parties. Multiple Mountberg brands have closed. Withdrawal complaints are consistently reported across the network. GamStop does not apply. No enforceable dispute resolution exists. Viggoslots sister sites share every one of these limitations. For UK readers, this article serves as an informational resource rather than a recommendation. Complete your KYC verification immediately after registration at any casino to minimise withdrawal complications.
If you or someone you know is affected by problem gambling, contact GamCare on 0808 8020 133. UK players can register with GamStop for self-exclusion across all UKGC-licensed operators. Note that GamStop does not cover Viggoslots or any Mountberg B.V. brand.