⚠️ Risk Education

What Are Crypto Lotteries & Speculative Services? How They Work, Risks & Cautions【2026】

※This article contains promotion.

Published: 2026.06.19 在日マネーナビ Editorial Team

Introduction (Important Disclaimer & Our Position)

⚠️ Important: Purpose of This Article and Our Position
This page is intended for those who have searched for "crypto lottery," "crypto raffle," or similar terms. Its sole purpose is to explain the mechanism and risks of such services from a neutral, educational standpoint.

This site (在日マネーナビ) does not recommend using crypto lotteries or speculative services.
Losses from speculation and gambling are common, and the risk of losing funds meant for living expenses or remittances home is serious. Whether to participate is entirely your own responsibility.

In recent years, "lotteries using cryptocurrency (crypto assets)" and "prize-draw or yield-type speculative services" have become increasingly visible online. Foreign residents in Japan are encountering this kind of information more often through social media and word of mouth. This page organizes how these services work and what risks they carry. Rather than asking "can you make money?", we write from the perspective of "please understand the risks correctly before deciding."

① How It Works — What Are Crypto Lotteries (Raffle-Type Services)?

General Mechanism

Services called "crypto lotteries" or "crypto raffles" broadly operate as follows.

ElementDetails
How to participateSend cryptocurrency (ETH, BTC, proprietary tokens, etc.) to receive a ticket or entry slip
How winners are chosenVia smart contract, random number generation, operator-run draw, etc. — varies by service
Prizes / payoutsA portion of the pooled entry fees is distributed to winners. The house (operator) takes a fixed percentage
FeesA fixed percentage of entry fees is deducted as fees. At this point, the expected value for all participants is already negative

Some services advertise "provably fair smart contracts" or "transparent on the blockchain," but even if the mechanism is transparent, the negative expected value structure — the more you bet, the more you lose overall — does not change.

How Is This Different from a Regular Lottery?

ComparisonGovernment-run lotteryCrypto lottery-type service
OperatorGovernment / local authority (Japan Lottery, etc.)Private company, individual, or anonymous operator
Oversight / regulationRegulated by law (Lottery Law, etc.)Often outside the scope of regulation; supervising authority unknown
Certainty of withdrawalClear payout process upon winningRisk of withdrawal refusal or service disappearing
Operator disclosurePublicly disclosed as an official bodyOften anonymous; contact details unknown
Entry fee limitOne to several tickets; relatively small amountsNo limit; large amounts are easy to spend
📌 Even if a service claims to "use cryptocurrency" or be "transparent on the blockchain," that alone does not make it safe or trustworthy. Always verify the operator's identity, regulatory status, and actual withdrawal track record.

② Risks (Most Important) — Gambling Nature, Total Loss & How to Spot Scams

(a) The Speculative, House-Favoring Nature — Designed for You to Lose

Lottery-type and speculative services are designed so that, across all participants, the house (operator) profits. This is described as "highly speculative," and it means the following.

  • A fixed percentage of all participants' wagers is always deducted as fees
  • The remainder is distributed to winners, so the expected value for all participants is always negative
  • "Some people win" is true, but "participants as a whole lose money" is equally true
  • The more times you participate, the more losses tend to accumulate
⚠️ The idea that "I lost last time, so I'll win this time" is the gambler's fallacy and is incorrect. Each draw is an independent event; past results do not affect future probabilities.

(b) Risk of Total Loss

In addition to the price volatility risk of cryptocurrency itself, there are loss risks specific to lottery and speculative services.

  • If you don't win: All cryptocurrency used to enter will not be returned
  • Crypto price decline: Even if you win, if the cryptocurrency's value has fallen, what you receive may be worth less
  • Service disappearance / inability to withdraw: If the operator suddenly shuts down the service, you may be unable to recover your funds
  • Smart contract bugs: Programming flaws can cause funds to become locked

(c) Risk of Addiction and Compulsive Behavior

Highly speculative services carry a risk of leading to gambling addiction.

  • The psychology of "I need to win it back" leads to increasing the amounts wagered
  • The feeling of "just one more time" persists, eventually leading to use of living expenses and savings
  • Addiction is often hard to notice, and may worsen until it affects family life or work
💡 If you feel "lately I want to stop but can't" or "I've used my living expenses," these may be signs of addiction. Don't carry it alone — please contact the consultation services listed at the bottom of this page.

(d) How to Identify Fraudulent Services

There are also fraudulent products disguised as "crypto lotteries." If multiple of the following "danger signs" apply, exercise extra caution.

Check PointRelatively Safer (still use caution)Danger Sign
Operator informationCompany name, address, and contact details are clearly statedAnonymous; contact unknown; company name cannot be found online
FSA registrationCrypto asset exchange registration can be confirmed on the Financial Services Agency (FSA) websiteNot registered; cannot be confirmed; only claims to be "applying" with no proof
Explanation of returnsProbabilities, fees, and mechanism are clearly disclosed (with loss risk)Definitive claims such as "guaranteed to profit," "principal guaranteed," or "high probability of returns"
Withdrawal track recordUser withdrawal reports and external reviews can be verifiedWithdrawals refused, delayed, or impossible without explanation
Recruitment channelJoined after researching independently via the official websiteSNS/social media DMs, celebrity impersonation accounts, or strong recommendations from acquaintances
Referral rewardsReferral reward structure is clearly disclosed (depending on the degree)Multi-level structure: "the more you refer, the more you earn" or "rewards for inviting friends"
⚠️ "A celebrity is recommending it on social media" is one of the most common scam tactics. There are many impersonator accounts posing as entertainers, famous investors, and politicians. Always verify whether the account is official, and we strongly recommend not responding to social media solicitations.
📌 If you feel even slightly that "something seems off," please contact the Consumer Hotline (188) or the National Consumer Affairs Center of Japan (国民生活センター) immediately. In particular, if after already sending money you are told "you must deposit more before you can withdraw," the likelihood of fraud is very high.

③ If You Still Choose to Participate — Minimum Precautions

This article does not recommend participation. However, for those who have understood the risks and made their own decision, we summarize the minimum precautions below.

  • Use only spare funds: Only use money that "will not affect your life even if lost entirely." Never use living expenses, savings, or borrowed money
  • Never use remittance funds: Using money intended to support your family back home for speculation puts their livelihoods at risk
  • Set a limit and stop when you reach it: Decide in advance "this month I will spend at most ○○ yen" and honor that limit regardless of emotion
  • 18 years or older: Most services require users to be 18 or over. Check the age requirement before participating
  • Stop immediately if you show signs of addiction: "I want to stop but can't" and "I keep increasing amounts to win back losses" are signs of addiction
  • Keep records: Track how much you have spent and how much you have received. This prevents the psychological distortion of feeling "I only lost a little"
  • Be aware of taxes: Profits related to cryptocurrency may be taxable as miscellaneous income. See also the Crypto Asset Tax Guide
PR ⚠️ Important Risk Warning (Speculative Service)

This service is a lottery-type (highly speculative) service that uses cryptocurrency. There is a possibility of losing your entire investment, and winning or profiting is not guaranteed in any way. Participation must be entirely at your own risk, and only within the scope of "spare funds" that will not affect your daily life. Never use borrowed money, living expenses, or funds intended for remittances home. Do not use this service if you have concerns about gambling addiction or financial difficulties. This link is a promotion (affiliate advertisement), and this site does not recommend using the service.

View Crypto Nova (18+, at your own risk) →

④ Frequently Asked Questions (FAQ)

Can you make money with crypto lotteries?
These services assume losses, not profits. Due to their highly speculative, house-favoring design, the structure means the house profits from participants as a whole. Be wary of claims such as "guaranteed to win" or "high probability of profit." While a small number of winners may gain, the majority of participants are likely to incur losses.
Are there any safe crypto lottery services?
Every service carries a constant risk of losing your principal. If you are considering participating, verify whether the service is registered or licensed with the Financial Services Agency (FSA), whether probabilities are disclosed transparently, whether there is a track record of actual withdrawals, and whether the operator's location is clearly stated. However, even verifying these points does not eliminate the risk of loss. This site does not recommend using such services.
How much is safe to participate with?
If you do choose to participate, always limit yourself to "spare funds that will not affect your life even if lost entirely." Never participate using living expenses, borrowed money, or funds intended for remittances home. Decide your own spending limit in advance and stick to it regardless of emotion — this is essential.
How can I distinguish fraudulent services?
The main danger signs are: ① Definitive claims of high returns such as "guaranteed to profit" or "principal guaranteed"; ② Refusal or delay of withdrawals; ③ Solicitation via social media DMs or celebrity impersonation accounts; ④ No English support or no disclosure of the operator's location; ⑤ Registration with the FSA (Financial Services Agency) or Consumer Affairs Agency cannot be confirmed. If you have even the slightest suspicion, we strongly recommend not participating.
Where can I seek help if I am worried about addiction?
Please contact the gambling addiction consultation service (mental health welfare centers in each prefecture in Japan), the Consumer Hotline (188), or the National Consumer Affairs Center of Japan (国民生活センター). "Wanting to stop but being unable to" and "increasing amounts to win back losses" are signs of addiction. Do not carry it alone — seeking help early is important.

⑤ Consultation & References (Official Agencies — Japan)

📌 All links below are to public bodies and official agencies. If something feels suspicious or you are in trouble, please contact them immediately.
  • Consumer Hotline (Japan): 188 (no area code required) ↗ — Consultation on fraud and consumer disputes. Available nationwide
  • National Consumer Affairs Center of Japan (国民生活センター): https://www.kokusen.go.jp/ ↗ — General consumer consultation. Multilingual support windows available
  • Financial Services Agency (FSA) — Crypto Asset Warnings: FSA website ↗ — Confirm registered crypto asset exchange operators and warnings about unregistered operators
  • FSA — Unregistered Operator List: Unregistered operator list ↗ — A list of unregistered operators that have received warnings
  • Gambling Addiction Consultation (Ministry of Health, Labour and Welfare): MHLW website ↗ — Information on addiction consultation services and support organizations
  • Police consultation: #9110 (nationwide police consultation hotline, Japan) — If you suspect fraud, contact your nearest police station or #9110