Gamdom Review

Cheap games, strict doors

Gamdom is a gambling site for adults (18+). It started in 2016 and is now a full crypto casino and sportsbook, run by its founder and CEO, Felix Römer. It's one of the big ones: an estimated 24.5 million visits in August 2026 (third-party traffic data), down from 30.9 million in March. On-chain estimates put about $244 million of crypto deposits through it in 30 days, from about 33,600 depositors with a median deposit of $140. That's fifth of the 34 casinos in our on-chain data, with about 5% of the deposit volume.

The games are among the cheapest you can play anywhere. What decides whether Gamdom works for you is the rest: whether your country is allowed, and what it asks for before a big withdrawal.

Who runs it

Its terms, checked on 24 October 2026 (last updated 1 October 2025), name the operator as Moon Revolution Limitada, a Costa Rican company (registration 3-102-903008), with a licence numbered ALSI-152406043-FI from the Autonomous Island of Anjouan in the Comoros. We didn't check that number against a register. An Anjouan licence is offshore, so if a dispute with support goes nowhere, don't count on a regulator to step in.

Two Trustpilot reviews from 8 September say the "old ownership" is gone. We've seen no announcement of a change, and the terms still name the same company.

Check your country first

Section 3.4 of the terms lists the places Gamdom doesn't serve, among them the United States, the United Kingdom, Australia, France, Germany, the Netherlands, Spain, Sweden, Denmark, Belgium, Austria and Portugal. The terms say that getting around this with a VPN, a proxy or false details can get your account restricted. Our own screenshot tool got Gamdom's "not available in your jurisdiction" pop-up.

The traffic estimates say plenty of people try anyway: Australia ties with Norway as its biggest source of visits, about 12% each, and France is about 4%. Some of those visits will just be people seeing the block page. If you are in a listed country and get in anyway, you're breaking the terms, and the moment that's most likely to surface is the ID check before a withdrawal.

What the games cost

The house edge is the share of every bet the site keeps over time. A 1% edge means you lose about $1 per $100 wagered on average, with big swings either way in the short run.

Game	What the house keeps	Source
Originals, first $5,000 wagered each day	0% after instant rakeback	Gamdom blog
Originals above $5,000 a day	about 1% (around 99% RTP)	Gamdom help centre
Originals, measured from money flows	about 0.87%	on-chain estimate
Sportsbook	about 5.6%	on-chain estimate

The 0% needs explaining. Gamdom's blog (updated May 2026) says all its Originals, such as Dice, Mines, Plinko, Keno and Crash, now return 100%. The games still carry their normal edge of about 1%, and Gamdom pays that back as instant rakeback on your first $5,000 wagered each day, which you claim from the Rewards page. Older Gamdom material only promised this on keno and plinko, and one help article says the instant payback covers "certain games" for the first $50,000 wagered, so check the Rewards page for the cap that applies to you. Either way, 0% is the long-run average: you can still lose a deposit quickly.

Gamdom says the Originals are provably fair: results come from a published SHA-256 hash chain, so you can check a round wasn't changed after you bet. Crash is the exception there, more on that below. We have no published edge for slots, live tables or case battles.

Crash cost more than 1%, until 4 November 2026

On 1 November 2026, provablyfair.org, an independent group that tests casino games against their fairness claims, published an investigation into Gamdom's Crash. Gamdom advertised a 1% house edge whatever your cash-out target. provablyfair.org found Gamdom's own code took more, and more the higher you aimed: about 1.67% at 1.5x, 2% at 2x, 2.79% at 10x and up to 2.98% at 1,000x. It says the bigger edge came in with a formula change on 2 January 2026, and that the version before had 1.11% at 2x (its reply on X). The daily 0% didn't cover it either: on its test account the instant rakeback paid back 1% of each bet, not the extra. From 99,119 bets it recorded over 44 hours, it put the extra cost to players at about $1.58 million since January. That's an estimate from a sample, not a confirmed total.

Gamdom owned it. On 4 November 2026 on X it said provablyfair.org was right, that Crash's real edge ran between 1% and 3% depending on your target, and that it has switched to a flat 1% at every target. Old rounds still verify against their original seeds. It re-ran past rounds with the new formula and paid out every bet whose auto cash-out target would now have been hit: $339,113.41 across 1,293 accounts, plus $250,000 in reload credits shared between those same accounts. Those totals are Gamdom's own.

provablyfair.org gave Gamdom credit for the fix the same day: Gamdom used the correction it proposed, and every target now returns 99%. It still has two complaints. The payback only looked at your saved auto cash-out target, so if you usually cashed out by hand before it, you probably got nothing back, even though you paid the higher edge on every bet. And it says Crash still isn't provably fair as set up: Gamdom moved to new hash chains on 15 October and 3 November without notice or a commitment published first, and the results are salted with a Bitcoin block hash known since 2015, so in theory a casino could pick a chain that favours the house. provablyfair.org doesn't say Gamdom did that, only that players can't rule it out.

So Crash now costs what the other Originals cost. If you played it between January and early November and cashed out by hand, provablyfair.org's advice is to save your bet history and ask Gamdom to review your bets.

The code: the standard 15%, nothing more

Code BETREFS gives 15% instant rakeback for your first 7 days. Tick "Code (Optional)" at sign-up, or enter it under Rewards, Special Rewards, within 6 hours of registering. After those 6 hours a code can't be added, and once one is set it can't be changed.

Gamdom's help page says any affiliate code gives this boost, including its own code GAM15. So BETREFS gets you the standard new-player rate, not a better one. Rakeback means part of the house's expected take comes back to you. Gamdom says it depends on bet size, house edge and RTP, isn't a fixed share of wagers, and doesn't publish the formula. If it works as a share of the house's expected win, which is our reading and not something Gamdom states, then $1,000 on slots at 96% RTP is an expected loss of $40, and 15% of that is about $6. Under the $5,000 cap the Originals already return their edge. One help article even says the boost runs for the first 6 hours, not 7 days, so treat 7 days as the best case.

Deposits and getting paid

The help centre lists 11 coins (including Bitcoin, Ethereum, USDT, USDC, Litecoin and Solana), Visa through a payment partner called Swapped, Apple Pay and Google Pay, bank deposits, and gift cards from $5 to $250. Steam skins go into the FIAT wallet. Our data lists CS2 skins as a withdrawal option too, but the help centre only explains crypto withdrawals, so check the cashier before you count on getting skins back. Each coin has its own wallet, and a coin wallet can only withdraw that coin. Withdrawal fees depend on the network and the speed you pick (Standard, Fast or Turbo), and Gamdom says most withdrawals take 5 minutes to an hour.

Four rules catch people out:

• Wager each deposit once before withdrawing it (section 4.1). A September reviewer who deposited $200 and was told to play it first ran into this.
• KYC ("know your customer", an ID check) isn't required until Gamdom asks, and it can cover ID, proof of address and source of funds. Withdrawals can be paused until it's done.
• Large withdrawals may be paid in instalments, on a schedule Gamdom sets.
• Use the listed network. One player who sent crypto on the wrong chain says recovery cost 75% of the deposit.

What players report

Gamdom has 3.2 out of 5 on Trustpilot from 5,132 reviews. September's worth reading: a player says a 12,000 USDT win was blocked after three levels of KYC, another was asked for a salary document and heard nothing for five days, and a VIP player says the account they'd closed over a gambling addiction was reopened on request and then banned. We can't verify these, but the KYC ones match what the terms allow.

Thin limits on self-exclusion

The self-exclusion tool offers 1, 5 or 8 days, and you can still withdraw during it. Anything longer means asking support to close the account. If you need a real break, ask for closure in writing, and use the support groups Gamdom's own page lists, such as Gordon Moody's Gambling Therapy.

Against Stake and Roobet

Stake states 1% on its Originals and on-chain estimates come out at 1.01%; Roobet's come out at about 1.25%. Gamdom beats both on your first $5,000 a day and is roughly level above it. Stake is far bigger, with about 46% of the deposit volume in our on-chain data to Gamdom's 5%.

Tanzanite's checklist

Tanzanite, a crypto casino data site, rates casinos on a checklist of five areas: provably fair games, responsible gambling tools, customer support, published RTPs, and operations (proof of funds and six months running). It lists Gamdom as "Tanzanite Certified", meaning it met all five (its Gamdom page, checked 29 October 2026). The checklist covers what a site offers, not an audit of what its games pay.

Is it safe?

It's a long-running site with a named founder, cheap games and money flowing out roughly as fast as it comes in. It's still offshore gambling: check your country is allowed, have ID and proof of address ready before your first withdrawal, and cash out as you go.