What Are Crypto Lotteries & Speculative Services? How They Work, Risks & Cautions【2026】
※This article contains promotion.
📋 Contents
Introduction (Important Disclaimer & 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.
| Element | Details |
|---|---|
| How to participate | Send cryptocurrency (ETH, BTC, proprietary tokens, etc.) to receive a ticket or entry slip |
| How winners are chosen | Via smart contract, random number generation, operator-run draw, etc. — varies by service |
| Prizes / payouts | A portion of the pooled entry fees is distributed to winners. The house (operator) takes a fixed percentage |
| Fees | A 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?
| Comparison | Government-run lottery | Crypto lottery-type service |
|---|---|---|
| Operator | Government / local authority (Japan Lottery, etc.) | Private company, individual, or anonymous operator |
| Oversight / regulation | Regulated by law (Lottery Law, etc.) | Often outside the scope of regulation; supervising authority unknown |
| Certainty of withdrawal | Clear payout process upon winning | Risk of withdrawal refusal or service disappearing |
| Operator disclosure | Publicly disclosed as an official body | Often anonymous; contact details unknown |
| Entry fee limit | One to several tickets; relatively small amounts | No limit; large amounts are easy to spend |
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
(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
(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 Point | Relatively Safer (still use caution) | Danger Sign |
|---|---|---|
| Operator information | Company name, address, and contact details are clearly stated | Anonymous; contact unknown; company name cannot be found online |
| FSA registration | Crypto asset exchange registration can be confirmed on the Financial Services Agency (FSA) website | Not registered; cannot be confirmed; only claims to be "applying" with no proof |
| Explanation of returns | Probabilities, 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 record | User withdrawal reports and external reviews can be verified | Withdrawals refused, delayed, or impossible without explanation |
| Recruitment channel | Joined after researching independently via the official website | SNS/social media DMs, celebrity impersonation accounts, or strong recommendations from acquaintances |
| Referral rewards | Referral 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" |
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
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)
⑤ Consultation & References (Official Agencies — Japan)
- 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