A Japan-targeted offshore casino with a Very Low independent Safety Index and a documented pattern of post-verification winnings confiscation
Not available lawfully hereIs Mystino legal in Japan?
No. Real-money gambling is banned in Japan. Under the Penal Code gambling offences and the revised Basic Law on Measures against Addiction, in force since the revised law took effect in September 2025, Mystino cannot lawfully offer you a welcome bonus here, and you cannot lawfully claim one.
Only public pari-mutuel sports and lotteries are legal in Japan; offshore online casinos are not. Online casino-related arrests hit a record 196 in 2025, up more than 38% on 2024. The revised law also criminalises intermediary 'reach' sites and social media promotion that funnel players to offshore casinos, and the first arrests over an affiliate site followed in September 2025. source
Any Mystino bonus you see advertised for Japan is offered from an offshore site operating against local law. Your payments can be blocked, your account can vanish with a mirror domain, and no Japan regulator can help you recover funds. We therefore show no offer and no sign-up link on this page. See every licensed betting site in Japan →
Pros
- A real, quantified three-deposit welcome package up to ¥150,000
- Relaxed/no wagering specifically on free-spin winnings
- Localized, Japan-focused presentation
Cons
- casino.guru gives it a Very Low 2.9 Safety Index and explicitly advises players to avoid it
- 5 documented complaints, 10,240 black points
- Clear, repeated documented pattern of winnings confiscated and accounts closed shortly after ID verification, across multiple distinct cases
- Illegal/unregulated for Japan-based players
Our verdict
Mystino is a Japan-exclusive offshore casino, operated by Curisle N.V. since 2020, licensed in Curacao and Anjouan (Comoros), and marketed with an anime-styled design aimed specifically at Japanese players. We want to report something serious directly rather than lead with the marketing: casino.guru gives Mystino a Very Low 2.9 Safety Index and explicitly advises players to avoid it, documenting 5 complaints and 10,240 black points. More importantly, we found a clear, repeated pattern across multiple distinct documented cases - not a single isolated incident - of Japan-based players having their winnings confiscated and accounts closed shortly after completing identity verification, with unclear or no explanation given. One specific case describes a player who deposited $500, won $7,393, and had the winnings confiscated and the account closed without clear communication right after verification; another describes winnings being confiscated during the verification process itself. New players are offered a genuinely quantified three-deposit welcome package (up to ¥150,000 total, with relaxed/no wagering on free-spin winnings), but we think the documented, repeated post-verification confiscation pattern is a serious enough concern that we cannot recommend this brand without a strong warning attached. This is illegal/unregulated for Japan-based players in any case, since Japan has no licensed online casino framework of its own.
How we rated it
Bonuses & value (18%)6.5
A real, quantified three-deposit welcome package totalling up to ¥150,000, with relaxed/no wagering specifically on free-spin winnings.
Casino (36%)6
A dedicated Japan-market casino product with an anime-styled design and localized presentation, per independent review, though we score this separately from the serious trust concerns below.
Customer support (18%)3
Multiple documented complaints describe unclear or absent communication when confiscating winnings and closing accounts, specifically around the verification process.
Trust & licensing (27%)2
A serious, documented problem: casino.guru gives it a Very Low 2.9 Safety Index and explicitly advises players to avoid it, with 5 complaints and 10,240 black points in its database. We found a clear, repeated pattern - not a one-off - of Japan-based players having winnings confiscated and accounts closed shortly after completing identity verification, with unclear or no explanation given in multiple distinct documented cases.
Quick facts
| Owner | Curisle N.V. |
| Founded | 2020, launched specifically for the Japanese market |
| Licence | Curacao Gaming Control Board + Anjouan Gaming (Comoros) |
| casino.guru Safety Index | 2.9/10 (Very Low) - explicitly advises avoiding this casino |
| Documented pattern | Multiple distinct cases of winnings confiscated + account closed shortly after ID verification |
| Welcome bonus | Up to ¥150,000 across 3 deposits (100%/75%/50%), 25x wagering, 14-day validity |
How we verified this
Mystino's operator (Curisle N.V.), its 2020 Japan-market launch, and its Curacao/Anjouan licensing are corroborated across independent casino-review sources. casino.guru's Very Low 2.9 Safety Index, its explicit avoid-recommendation, and the 5 documented complaints (10,240 black points) are drawn directly from its own published review and complaint-resolution pages, including multiple distinct cases specifically describing post-verification winnings confiscation. Japan's illegal/unregulated legal status for this brand matches our own bonuses.json entry.
Where Mystino is licensed
Mystino appears on the official register in 1 countries. Highlighted countries have a full local review — pick yours for its welcome bonus and licence details.
Asia (1)
About Mystino
Mystino is a Japan-exclusive offshore casino (Curisle N.V., since 2020) with a Very Low 2.9 casino.guru Safety Index - the platform explicitly advises avoiding it. We report a serious, repeated documented pattern of winnings being confiscated and accounts closed shortly after identity verification, based on multiple distinct player cases.
Mystino FAQ
Is Mystino safe?
No - casino.guru gives it a Very Low 2.9 Safety Index and explicitly advises players to avoid it, documenting 5 complaints and 10,240 black points.
Does Mystino confiscate winnings?
We found a clear, repeated documented pattern - not a single isolated case - of players having winnings confiscated and accounts closed shortly after completing identity verification, with unclear or no explanation given.
Who owns Mystino?
Curisle N.V., which launched Mystino in 2020 specifically for the Japanese market.
Is Mystino legal in Japan?
No - it's an offshore operator, and Japan has no licensed online casino framework, making it illegal/unregulated there.
What is the Mystino welcome bonus?
A three-deposit package totalling up to ¥150,000 (100%/75%/50%), with 25x wagering on the deposit-match portions and relaxed/no wagering on free-spin winnings.