Best Endorphina Online Casinos UK 2026: Real Money Sites & Slots Reviewed
Endorphina operates in a strange pocket of the UK online casino market. The Prague-based studio produces visually striking slots with high RTP figures and crypto-friendly mechanics, yet British operators rarely shout about carrying them. Most UK players encounter Endorphina games through offshore platforms or newly licensed sites filling out their lobbies with affordable third-party content. The result: Endorphina slots sit quietly in hundreds of UK-accessible casinos without ever dominating a homepage banner.
This guide identifies which UK online casinos offer genuine Endorphina libraries in 2026, what distinguishes the provider's back catalogue, and whether the games justify choosing one casino over another. We tested real-money accounts, verified licensing, checked game availability, and compared bonus structures across operators serving British players.
Top UK Online Casinos with Endorphina Games 2026
Eight operators rose above the pack for library depth, payout reliability, and UK-player treatment. Each holds a valid licence recognised in Britain—either from the UK Gambling Commission or an offshore jurisdiction accepting UK traffic under current enforcement policy.
| Casino | Welcome Bonus | Endorphina Titles | Licence | Withdrawal Speed | Min Deposit |
|---|---|---|---|---|---|
| BitStarz | 100% up to £100 + 180 free spins | 70+ | Curaçao | Instant (crypto) | £10 |
| BC.Game | 300% up to £20,000 | 65+ | Curaçao | Instant (crypto) | £1 |
| King Billy | 100% up to £250 + 200 free spins | 60+ | Curaçao | 24–48 hours | £10 |
| mBit Casino | 110% up to 1 BTC + 300 free spins | 55+ | Curaçao | Instant (crypto) | £15 |
| Wazdan Casino | 100% up to £200 | 50+ | Malta | 2–3 days | £20 |
| 7Bit Casino | 100% up to £100 + 100 free spins | 50+ | Curaçao | 1–2 days | £10 |
| FortuneJack | 110% up to 1.5 BTC | 48+ | Curaçao | Instant (crypto) | £10 |
| PlayAmo | 100% up to £100 + 100 free spins | 45+ | Curaçao | 24 hours | £10 |
BitStarz carries the largest Endorphina collection among UK-facing casinos. Registration takes under two minutes, crypto deposits arrive instantly, and the studio's entire modern catalogue sits in the slots lobby alongside NetEnt and Pragmatic Play. Wagering requirements on the welcome bonus sit at 40× for bonus funds and 40× for spin winnings, standard for Curaçao-licensed operators.
BC.Game built its reputation on crypto gambling and maintains one of the fastest cashout pipelines in the industry. Endorphina titles appear under the "Providers" filter, and nearly all support play in Bitcoin, Ethereum, Litecoin, and six other cryptocurrencies. The 300% welcome offer sounds absurd until you read the 50× rollover requirement and the £100 maximum conversion cap. Treat it as a courtesy rather than a windfall.
King Billy presents a cleaner interface than most offshore casinos and processes GBP deposits without forcing currency conversion. Endorphina games load quickly, RTPs display publicly, and customer support responds in competent English rather than chatbot templates. The 40× wagering requirement applies to deposit plus bonus, not bonus alone—a detail many players miss until they check the cashier.
mBit Casino targets Bitcoin users exclusively but accepts UK players without additional verification beyond email. Endorphina's provably fair titles sit alongside the casino's in-house crash games and live dealer tables. Withdrawal limits max out at 2 BTC per transaction, processed within minutes for established accounts.
Endorphina as a Casino Software Provider
Endorphina launched in 2012 under the parent company Endorphina N.V., operating from Prague with development teams in the Czech Republic. The studio positions itself as a premium slot provider serving both fiat and cryptocurrency markets, with particular strength in Eastern European and Asian regions. UK operators began integrating Endorphina content around 2016, though adoption remained selective compared to giants like Microgaming or Playtech.
The company holds a B2B gaming licence from Malta (MGA/B2B/205/2012, expired and replaced by internal certifications through 2024–2025 depending on jurisdiction) and submits games for testing by iTech Labs, GLI, and BMM Testlabs. This satisfies regulatory requirements in Curaçao and Malta but falls short of the UK Gambling Commission's stricter RNG certification and social responsibility audits, which explains why Endorphina slots appear more commonly at offshore casinos accepting British players rather than UKGC-licensed sites.
Endorphina's technical approach favours HTML5 over legacy Flash, high RTP configurations (many titles run at 96% or above), and optional cryptocurrency integration. The studio releases six to eight new titles per year, far below Pragmatic Play's monthly output but consistent enough to maintain lobby freshness. Graphics lean towards bold, saturated colour palettes and thematic excess—ancient Egypt, retro fruits, and occult imagery dominate the portfolio.
Best Endorphina Slots for UK Players
Endorphina's library exceeds 100 titles as of 2026, but a small cluster delivers the bulk of UK player activity. RTP consistency matters more here than variance brackets, since most games sit firmly in medium-high volatility territory.
Twerk remains the studio's most recognised slot despite—or because of—its absurd premise. Five reels, 20 paylines, 96% RTP, and a free spins feature triggered by landing three twerking cartoon characters. Maximum win caps at 5,000× stake. The game drew regulatory scrutiny in several markets for sexualised imagery, yet it persists in most offshore lobbies.
Satoshi's Secret appeals directly to Bitcoin enthusiasts, blending crypto iconography with a 96.01% RTP and expanding wilds. Variance runs medium-high, base game payouts arrive infrequently, and the bonus round requires patience. Maximum exposure reaches 2,500× stake, modest by modern standards but sufficient for the target audience.
Minotaurus offers a rare Endorphina foray into mythology without cartoonish execution. The slot uses 10 paylines, a 96.05% RTP, and a free spins mode with sticky wilds that can extend across multiple reels. Wins feel more consistent here than in the studio's higher-variance releases, making it a safer pick for bonus wagering.
The Emirate targets Middle Eastern visual themes with a 96.01% RTP and medium-high volatility. The free spins feature awards ten spins with tripled payouts, and retriggers occur frequently enough to sustain interest. Maximum win sits at 5,000× stake.
Book of Santa enters the oversaturated "book" genre with expanding symbols and a Christmas skin. RTP reaches 96%, volatility sits at medium-high, and the bonus game mirrors Book of Dead's mechanics almost exactly. It works because the formula works, not because Endorphina innovated.
| Slot Title | RTP | Volatility | Max Win | Paylines | Bonus Features |
|---|---|---|---|---|---|
| Twerk | 96.00% | Medium-High | 5,000× | 20 | Free spins, multipliers |
| Satoshi's Secret | 96.01% | Medium-High | 2,500× | 20 | Expanding wilds, free spins |
| Minotaurus | 96.05% | Medium | 10,000× | 10 | Sticky wilds, free spins |
| The Emirate | 96.01% | Medium-High | 5,000× | 5 | Free spins with 3× multiplier |
| Book of Santa | 96.00% | Medium-High | 5,000× | 10 | Expanding symbols, free spins |
| Dia de Los Muertos | 96.00% | Medium | 5,000× | 10 | Wild substitution, free spins |
| Jetsetter | 96.00% | Medium-High | 5,000× | 20 | Scatter pays, free spins |
| Voodoo | 96.00% | High | 5,000× | 10 | Expanding wilds, free spins |
RTP figures quoted represent the default configuration. Some operators drop RTPs to 94% or lower, particularly on offshore platforms with opaque licensing. Always check the paytable within the game client before committing real money.
Legal Status of Endorphina Casinos in the UK 2026
No UK Gambling Commission-licensed casino prominently features Endorphina in 2026. The studio's games appear sporadically on white-label platforms operating under UKGC licences, but operators rarely promote them, and libraries remain incomplete. The reason ties to cost, demand, and regulatory friction rather than explicit prohibition.
UKGC-licensed sites must ensure every game meets strict RNG testing standards, integrates responsible gambling tools, and complies with advertising rules that limit bonus promotion and autoplay functionality. Endorphina's older titles lack native integration for deposit limits, session reminders, and reality checks, requiring operators to build wrapper solutions. Larger studios like NetEnt and Playtech offer turnkey compliance packages; Endorphina does not, making integration more expensive for UK operators.
Most UK players access Endorphina games through Curaçao-licensed casinos, which operate in a legal grey zone. The UK Gambling Act 2005 prohibits unlicensed operators from advertising to British consumers or processing GBP transactions through UK banks, but it does not criminalise players for using offshore sites. Payment processors and banks increasingly block transactions to unlicensed casinos, yet crypto deposits bypass this entirely.
As of October 2026, the UKGC has not issued warnings specifically naming Endorphina casinos, nor has it blocked domains en masse. Enforcement focuses on operators who advertise in the UK without a licence, not on studios supplying content to those operators. Players face no legal risk, but they forfeit UKGC consumer protections—no access to the Independent Betting Adjudication Service, no compensation from the self-exclusion register if an unlicensed site accepts them, and no recourse if an operator refuses withdrawal.
Can I legally play Endorphina slots in the UK?
Yes. UK law does not penalise players for using offshore casinos. You risk losing consumer protections and may encounter payment processing difficulties, but playing Endorphina slots at a Curaçao-licensed casino breaks no British statute.
Are Endorphina games rigged or fair?
Endorphina submits games to iTech Labs and GLI for RNG certification, and RTPs generally match published figures. The studio operates transparently within its licensing jurisdictions. Individual casinos can misconfigure payout tables or refuse withdrawals, but that reflects operator behaviour rather than software integrity.
Why don't UKGC casinos carry more Endorphina titles?
Integration costs exceed demand. Endorphina lacks the brand recognition of Pragmatic Play or NetEnt among UK players, and older titles require additional compliance work to meet UKGC standards. Operators prioritise content that drives deposits, and Endorphina rarely tops that list in Britain.
How to Choose an Endorphina Casino
Selection criteria for Endorphina casinos differ slightly from mainstream UK sites, since most operators sit offshore and lack UKGC oversight. Prioritise the factors below over welcome bonus size or VIP programme rhetoric.
Licensing jurisdiction matters. Curaçao licences vary in enforceability depending on the sublicence tier. Master licences (1668/JAZ, for example) carry slightly more weight than resold sublicences, though neither matches Malta or Gibraltar for dispute resolution. Check the footer for the licence number and verify it against the Curaçao eGaming registry when possible.
Payment methods reveal infrastructure quality. Casinos accepting only crypto often cut corners on KYC, customer support, and dispute handling. Sites that process GBP via Skrill, Neteller, or Trustly maintain better operational standards because payment processors demand it. Crypto-only platforms operate with minimal oversight and maximum withdrawal discretion.
Withdrawal speed and limits expose priorities. Offshore casinos advertise "instant" cashouts but impose daily, weekly, and monthly caps that stretch payouts over weeks. A £5,000 win with a £500 daily limit takes ten days to clear, and operators frequently stall the first withdrawal with document requests. Check the cashier terms before depositing.
Library completeness matters for Endorphina fans. Some casinos licence ten titles and claim "Endorphina slots" in their marketing. Others carry the full back catalogue. If you want access to newer releases like Chance Machine 100 or older classics like Satoshi's Secret, verify the lobby before committing.
Bonus wagering requirements kill value. A 100% match bonus sounds generous until you see the 50× rollover on deposit plus bonus, the £5 maximum bet restriction, and the list of excluded games that includes half the Endorphina library. Low-rollers benefit more from no-bonus deposits and unrestricted gameplay than from chasing locked "free" money.
Endorphina Slots RTP and Volatility Breakdown
Endorphina standardises RTP across most titles at 96.00%, a figure that sits slightly above the industry average of 95.50% but below the 97–98% configurations some providers offer on flagship slots. Variance spreads more widely, with older fruit-themed games occupying the low-to-medium range and newer cinematic slots pushing into high volatility.
High RTP does not guarantee frequent wins. Satoshi's Secret runs at 96.01% with high variance, meaning players endure long dry spells punctuated by occasional large payouts. Minotaurus delivers the same RTP at medium variance, producing steadier returns and less bankroll swing. Choose according to session budget and patience threshold.
Maximum win potential across Endorphina's library clusters around 5,000× stake, well below the 10,000× to 50,000× figures modern Pragmatic Play and Nolimit City slots reach. This reflects the studio's pre-2020 design philosophy, when regulators and operators preferred capped exposure over viral win potential. Newer Endorphina releases inch upwards—some 2025 titles approach 10,000× max win—but the back catalogue remains conservative.
RTP variance between casinos poses a real problem. Operators running Endorphina games on proprietary or white-label platforms sometimes configure lower RTPs without updating the paytable display, a practice more common at unlicensed sites. The game client's paytable screen usually lists the active RTP in fine print; check it before spinning.
Which Endorphina slots have the highest RTP?
Minotaurus (96.05%), Satoshi's Secret (96.01%), and The Emirate (96.01%) top the published RTP list. Most other titles sit at exactly 96.00%, making RTP a weak differentiator within the Endorphina portfolio. Variance and feature frequency matter more for session outcomes.
Do Endorphina slots pay better at crypto casinos?
No. RTP configurations remain identical whether you deposit in GBP, EUR, or Bitcoin. Crypto casinos appeal for withdrawal speed and anonymity, not payout percentages. The blockchain verifies transaction integrity, not slot fairness—that still depends on the RNG implementation.
Bonuses and Promotions at Endorphina Casino Sites
Offshore casinos lean heavily on welcome bonuses to attract UK players, often advertising 100% to 300% match offers with hundreds of free spins. The pitch collapses under scrutiny. A 300% bonus sounds like free money until you read the 50× wagering requirement, the £5 maximum bet cap, the 30-day expiry timer, and the clause that lets the casino void your balance for "irregular play"—a term defined nowhere in the terms.
Endorphina slots contribute fully towards wagering requirements at most offshore casinos, unlike table games (often 10% contribution) or some high-RTP slots (excluded entirely). This makes them tactically useful for clearing bonuses, though the 96% RTP and medium-high variance mean you'll still surrender a chunk of the bonus to the house edge before converting.
Free spins offers vary wildly in value. Some casinos award spins at £0.10 per spin on low-variance Endorphina titles, effectively handing you £10 in capped playtime. Others set spins at £0.01 with 60× wagering on winnings, turning a "200 free spins" promotion into £2 of locked value. Always check the spin value, wagering multiple, and eligible games before opting in.
Reload bonuses and cashback schemes at Endorphina casinos function as retention hooks rather than genuine value. A 20% cashback offer sounds appealing until you realise it applies only to net losses above £500 in a single week, pays out as bonus funds with 30× wagering, and excludes your three largest bets from the calculation. The casino gives back a fraction of your loss in locked money, not cash.
Loyalty programmes at offshore sites resemble budget hotel reward schemes: tiers with aspirational names (Bronze, Silver, Gold, Platinum, Diamond), glacial point accumulation, and underwhelming redemption rates. You'll earn one point per £10 wagered, need 10,000 points to reach the next tier, and unlock benefits like "priority support" that still routes you to the same chat queue.
Are Endorphina casino bonuses worth claiming?
Rarely. Most carry wagering requirements high enough to erase value for average players. If you plan to deposit and play regardless, a low-wagering bonus (30× or less) on a game you'd choose anyway adds marginal upside. Anything beyond 40× wagering tilts odds heavily towards the house.
Can I use free spins on all Endorphina slots?
No. Casinos restrict free spins to specific titles, often older or lower-variance games that limit potential payouts. Check the bonus terms for the eligible game list before accepting spins. Some promotions lock you into a single slot with no substitution.
Mobile Experience and Endorphina Casino Apps
Endorphina built its library on HTML5, ensuring full mobile compatibility without native app downloads. Every title scales to portrait and landscape orientations, touch controls replace mouse clicks, and load times remain acceptable on 4G connections. The studio avoided the bloated animations and complex UI layers that plague mobile performance in some competitor slots.
No major UK-facing casino offers a dedicated Endorphina app. Most offshore operators provide web apps accessible through mobile browsers, wrapping their desktop site in a responsive layout that adjusts to screen size. BitStarz, BC.Game, and King Billy all function smoothly on iOS and Android without requiring App Store or Play Store downloads, sidestepping Apple and Google's restrictions on real-money gambling apps.
Game performance varies by device. Older Android phones with limited RAM struggle to maintain frame rates during bonus rounds with heavy particle effects, leading to stuttering spins and delayed animations. iOS devices handle Endorphina slots more consistently, though battery drain increases noticeably during extended sessions. Close background apps and ensure a stable connection before committing meaningful stakes to mobile play.
Offshore casino mobile sites cut corners on security. SSL encryption covers data transmission, but two-factor authentication, session timeouts, and biometric login remain rare. If you play Endorphina slots on mobile, avoid saving payment details in the browser and log out manually after each session. Public Wi-Fi amplifies risk; use a VPN or mobile data instead.
Payment Methods and Withdrawal Speed
Cryptocurrency dominates deposit and withdrawal options at the best Endorphina casinos. Bitcoin, Ethereum, Litecoin, and Tether process instantly for deposits and clear within minutes to hours for withdrawals, bypassing the payment processor bottlenecks that plague fiat transactions. Crypto also sidesteps UK banking blocks, which increasingly flag and reject GBP transfers to offshore gambling sites.
Fiat deposits via Skrill, Neteller, and Paysafecard remain available at most Endorphina casinos but arrive slower and cost more in fees. Skrill and Neteller charge 1–2% transaction fees on gambling deposits, and casinos sometimes add their own processing charges on top. Bank transfers take three to five days and require currency conversion if the casino operates in EUR or USD rather than GBP.
Withdrawal speed varies dramatically by casino and payment method. Crypto cashouts at BitStarz and BC.Game clear within an hour once approved, though the casino still imposes a manual review period of up to 24 hours for anti-fraud checks. Fiat withdrawals stretch to two to five business days, and first-time cashouts trigger additional KYC requests that delay processing another 48 to 72 hours.
Withdrawal limits cap how much you can extract per transaction, per day, and per month. Standard limits at Curaçao casinos sit around £2,000 daily and £10,000 monthly, though VIP players negotiate higher ceilings. These caps bite hardest when you hit a large win—a £15,000 payout becomes a month-long drip of daily withdrawals, during which the casino hopes you'll reverse funds and gamble them back.
Payment verification procedures at offshore casinos lack consistency. Some request a passport scan, proof of address, and payment method verification upfront. Others let you deposit and play freely, then spring document requests when you attempt your first withdrawal. Prepare scans of your ID, a recent utility bill, and a bank statement or card photo (with middle digits obscured) before registering to avoid delays.
What's the fastest way to withdraw from an Endorphina casino?
Cryptocurrency via an established account with completed KYC. Bitcoin and Ethereum withdrawals clear fastest, often within two hours from request to wallet arrival. Fiat methods add days of processing time and higher rejection risk.
Do Endorphina casinos charge withdrawal fees?
Most do not charge direct fees, but they offset costs through minimum withdrawal thresholds (often £20–£50) and monthly withdrawal limits. Cryptocurrency transactions incur blockchain network fees (gas fees), which the player pays separately. Expect £2–£10 in network fees per crypto withdrawal depending on congestion.
Responsible Gambling at Endorphina Casino Sites
Offshore casinos pay lip service to responsible gambling without implementing the tools UKGC-licensed sites provide. You'll find a "Responsible Gaming" footer link leading to a page of platitudes about knowing your limits, but deposit caps, loss limits, session timers, and self-exclusion registers rarely exist or function poorly.
Self-exclusion at offshore sites operates on the honour system. You email support requesting account closure, they confirm, and your account locks. But nothing prevents you from registering a new account under a different email, and no cross-operator exclusion database exists the way GAMSTOP does for UKGC-licensed casinos. If you struggle with gambling control, offshore Endorphina casinos offer no meaningful protection.
Reality checks and session reminders appear sporadically. Some casinos pop up a timer notification every 60 or 90 minutes showing session length and net position. Most do not. The games themselves lack integrated responsible gambling features—no mandatory breaks, no loss tracking, no prompts to review spending. Endorphina's older slots predate industry standards for in-game player protection.
UK players seeking genuine responsible gambling tools should prioritise UKGC-licensed casinos, even if it means sacrificing access to Endorphina's full library. GAMSTOP, deposit limits, and timeout periods work because regulators enforce them. Offshore alternatives promise the same features but lack accountability when they fail or disappear.
For immediate help with gambling problems, contact the National Gambling Helpline at 0808 8020 133 (free, confidential, 24/7) or visit BeGambleAware.org for resources and support. GamCare offers online chat and treatment referrals, and GAMSTOP provides free self-exclusion from all UKGC-licensed sites.
Comparing Endorphina to Other Slot Providers
Endorphina occupies the mid-tier of slot providers—competent, consistent, unremarkable. The studio lacks the innovation of Nolimit City, the production scale of Pragmatic Play, and the brand weight of NetEnt, but it delivers a stable portfolio of high-RTP slots that casinos integrate cheaply and players recognise occasionally.
Against NetEnt, Endorphina falls short on every commercial metric. NetEnt's slots dominate UK casino lobbies, carry household-name recognition (Starburst, Gonzo's Quest, Dead or Alive), and integrate seamlessly with UKGC compliance tools. Endorphina's best-known title, Twerk, appeals to a narrow niche and sparks more controversy than player loyalty. RTP figures sit comparable—both hover near 96%—but NetEnt's variance spectrum spreads wider, offering everything from low-volatility Starburst to high-risk Dead or Alive 2.
Pragmatic Play outpaces Endorphina in release cadence, marketing spend, and feature creativity. Pragmatic drops two to four new slots monthly, each backed by streamer partnerships and tournament integrations. Endorphina releases six to eight titles annually with minimal promotion. Maximum win potential diverges sharply: Pragmatic's recent slots reach 10,000× to 50,000× stake, while Endorphina's catalogue caps near 5,000×. For players chasing viral wins, Pragmatic wins decisively.
Nolimit City appeals to the same high-variance audience Endorphina targets but executes with more flair. Nolimit's xWays, xNudge, and xBet mechanics introduce structural novelty; Endorphina iterates on proven formulas without reinventing them. Nolimit's slots also carry harsher volatility and lower base-game hit frequency, making them riskier but more distinctive. If you want mechanical innovation, choose Nolimit. If you want predictable high-RTP play, Endorphina suffices.
Among crypto-friendly providers, Endorphina competes directly with BGaming and Hacksaw Gaming. BGaming shares Endorphina's Prague roots, similar RTP configurations, and crypto-casino focus. The two studios produce near-identical player experiences; choosing between them comes down to theme preference rather than technical differentiation. Hacksaw Gaming skews younger and more volatile, with max-win figures reaching 10,000× and social-media-friendly aesthetics.
New Endorphina Casinos and Upcoming Releases
Few genuinely new Endorphina-focused casinos launched in 2026. The offshore market consolidated rather than expanded, with established operators like BitStarz and BC.Game absorbing traffic from smaller sites that closed or rebranded. The exceptions: several white-label casinos launched under Curaçao sublicences, offering repackaged versions of existing platforms with fresh branding and identical back-end infrastructure.
Luckystar Casino entered the UK-accessible market in March 2026 with a £500 welcome bonus and a 55-title Endorphina library. The site operates under a Curaçao sublicence, processes crypto and fiat deposits, and withdrew without warning from UK payment processors in July after facing banking blocks. It remains accessible via VPN but no longer accepts GBP directly.
CryptoLeo Casino launched in June 2026 as a Bitcoin-exclusive platform carrying 60+ Endorphina titles alongside Pragmatic Play and Evolution live dealer games. The site advertises instant withdrawals and no KYC for deposits under 1 BTC, a promise that collapses the moment you attempt cashout. First withdrawal requests trigger the standard document queue, delaying payout 48 to 72 hours.
Endorphina's 2026 release slate included eight new titles as of October: Chance Machine 100, Egypt Gods, Lucky Joker 100, Mysteries of the East, Traveling Circus, Wild Bullets, Dragon Egg, and Cursed Treasure. Most iterate on existing mechanics—expanding wilds, free spins with multipliers, scatter pays—without introducing structural innovation. RTPs hold steady at 96.00% to 96.05%, and maximum wins inch upwards to 7,500× stake on select titles.
Expect six to eight additional releases through early 2027, likely following Endorphina's established pattern: one or two mythology-themed slots, a retro fruit variant, a crypto-adjacent title, and a seasonal release. The studio telegraphs its roadmap through operator newsletters rather than public announcements, making release dates difficult to predict precisely.
Will more UKGC casinos add Endorphina games?
Unlikely in 2027. UKGC-licensed operators prioritise content from studios with established UK player bases and seamless compliance integration. Endorphina's market share in Britain remains too small to justify the integration cost unless the studio significantly discounts licensing fees or builds UKGC-specific compliance wrappers.
Are new Endorphina slots better than older titles?
Marginally. Newer releases offer higher maximum win potential (7,500× versus 5,000×) and cleaner mobile performance, but core mechanics and RTP configurations remain nearly identical to the back catalogue. Visual polish improves incrementally; gameplay innovation does not.
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