Cosmobet sister sites

Cosmobet shares its operator, Santeda International B.V., its Curaçao licence and its Upgaming platform with 4 other brands: Velobet, Rolletto, Goldenbet and Zizobet. 2 more, MyStake and Donbet, run on the same platform under a different licence holder, GTW B.V., so we compare them separately. This page is written for a player who already knows Cosmobet and wants to know which brands sit around it and whether the differences are worth acting on. The short answer is that the lobby and cashier barely differ, so the real reasons to look elsewhere are welcome structure, the time allowed to clear wagering and what each brand does with an account you stop using.

The Gambling Commission requires any operator offering remote gambling to consumers in Great Britain to hold a Commission licence, including operators based overseas. None of the 7 brands on this page holds one, so none is authorised to serve players in Great Britain.

A note on money: welcome offers and most minimum deposits display in euros, the base currency these brands use, and Cosmobet's pages show €, $ and £ side by side. Treat the euro figure as the published offer rather than a converted sterling amount, because the figure that applies follows your account's registered currency.

Which Cosmobet sister site fits which player

The table starts with what each brand does differently from Cosmobet and the restriction to check before signing up. Welcome offers sit in a separate table further down, because the wagering deadlines covered below decide how much they are worth.

What existing Cosmobet players need to know

Two points matter more to a Cosmobet player than any welcome figure: how the bonus rules follow you from one site to the next, and how accounts, verification and idle balances are treated.

Welcome bonus eligibility

Cosmobet's terms allow no more than one of each bonus per user, IP address, device, family, residential address, telephone number, card, payment account and email address, and only one account per person, household or IP address. Its welcome terms repeat the rule as one package per player, household, IP address, email, address or device. Velobet, Rolletto, Goldenbet and Zizobet use the same wording, and so do MyStake's terms. We could not establish whether the brands share customer data with each other, so do not assume a second welcome will be honoured, and do not assume it will be refused.

If you have already taken Cosmobet's welcome, the recurring terms are the better comparison. Cosmobet returns 10% of monthly crypto deposit losses as a casino bonus at 30x within 7 days, requested by email in the first 5 days of the next month, and it runs a weekly 20% sports bonus up to €200 at 10x. Velobet advertises a 10% VIP cashback without wagering, Goldenbet pays 10% cashback on request up to €500 at a time, and MyStake pays its 10% monthly crypto cashback without wagering. Those terms outlast any sign-up offer.

Accounts, verification and withdrawals

Each brand is a separate site with its own registration, balance and identity checks. There is no shared login, and balances are not pooled across brands. Cosmobet's terms let it request identity documents at any time and allow 30 days to supply them, and they process payouts within 3 banking days, to the same method used for depositing, from a €20 minimum.

We could not establish whether documents accepted at one brand are recognised at another, so treat each site as a fresh verification. A common complaint pattern across offshore casinos is a first withdrawal held until documents are supplied, which is avoidable if verification is finished first. The inactivity terms differ more than most readers expect. Cosmobet treats an account as dormant after 365 days without a login and can then charge 5% of the balance a month, capped at €20. Rolletto and Velobet start after 60 days and charge 20% a month with no cap, Goldenbet and MyStake charge €10 a month after 12 months, and we found no dormancy clause in Zizobet's terms.

How the sister sites compare

Wagering is the term to read closely, because at every brand that publishes it here it attaches to deposit plus bonus rather than the bonus alone. A £100 deposit plus a £100 bonus at 30x deposit-and-bonus wagering requires £6,000 in qualifying bets before withdrawal, not £3,000. That is arithmetic on the stated terms, not a live offer.

Cosmobet's own casino welcome spreads over the first 4 deposits, each a 100% match up to €500, for up to 400% and €2,000 in bonus. Each part carries 30x deposit plus bonus on slots only, with a €5 maximum bet, and must be cleared within 7 days of activation. The minimum deposit is €20. A €100 deposit earns a €100 bonus and needs €6,000 in bets within the week, or roughly €860 a day. Taking the full package means 4 deposits of €500 and €120,000 in bets, each quarter inside its own 7-day window.

The free spins depend on deposit size rather than the match. Each deposit of €20 to €99.99 adds 50 spins, €100 to €199.99 adds 100, and €200 or more adds 250, so the 1,000 in the headline needs 4 deposits of at least €200. The spins are worth $0.10 each on one game and expire after 24 hours. A separate crypto welcome of 200% up to €1,000 on the first crypto deposit carries 35x deposit plus bonus within 7 days. The general terms cap withdrawable winnings from any deposit bonus at 10 times the qualifying deposit, and apply a €7,500 weekly and €15,000 monthly withdrawal limit.

Zizobet

Zizobet is the brand closest to Cosmobet's shape, with a 4-deposit casino welcome of its own. It reaches 550% up to €5,300 with up to 900 free spins, and a crypto alternative reaches 630% up to €6,060 with 1,000 free spins. The minimum deposit is €10.

The rate is where the 2 differ. Zizobet's first 2 deposits earn 100% and 110% on €10 to €500 and 150% on €500 to €1,000, the third earns 100% up to €800, and the fourth qualifies only from €500. On €100 deposits Cosmobet pays the same or close to it at every stage, while on €1,000 deposits Zizobet pays far more. Neither Zizobet's welcome page nor the general terms we read give a wagering multiplier, while the terms do carry the same 10x-deposit win cap.

For a Cosmobet player who deposits €500 or more at a time, Zizobet has the stronger headline. A player who deposits in the low hundreds gains little over Cosmobet here, and cannot compare the wagering at all.

Velobet

Velobet's welcome covers 3 deposits: 150% on a first deposit of €10 to €500, or 100% on €500 to €1,000, plus 300 free spins, then 100% up to €500 and 80% up to €500. All 3 carry 30x deposit-plus-bonus wagering with a €5 maximum bet, and the minimum deposit is €10.

The time allowed is the difference that matters. Velobet gives 30 days to clear each part where Cosmobet gives 7, at the same 30x multiplier, and it pays 150% rather than 100% on a first deposit under €500. The trade-off sits in its inactivity terms: after 60 days without a login it can charge 20% of the balance every month, against Cosmobet's 5% capped at €20 after a year. Velobet also advertises a 10% VIP cashback without wagering and a 160% crypto welcome up to €1,000 at 35x.

For a Cosmobet player who cannot play every day, Velobet is the strongest fit in the group. A player who leaves money in accounts between sessions should withdraw it first.

Rolletto

Rolletto carries the largest match cap in the group. Its welcome reaches up to €5,500 across 3 deposits: 150% up to €500, 50% up to €2,000 and 25% up to €3,000, with 50 free spins on the first deposit and 30 more on each of the next 5 days of logins. The minimum deposit is €20.

The cap comes at the price of the hardest terms in the group. The first 2 parts carry 40x deposit plus bonus and the third 30x, each within 5 days rather than Cosmobet's 7, and reaching the second and third caps takes deposits of €4,000 and €12,000. Its inactivity clause is the same as Velobet's, at 20% a month after 60 days. Its crypto welcome, 100% up to €1,000 plus 200 free spins, accepts 8 coins including Bitcoin, Monero and Stellar.

For a high-volume crypto player who can clear heavy wagering quickly, Rolletto has the strongest cash headline. A Cosmobet player who deposits a few hundred at a time gains nothing here.

Goldenbet

Goldenbet uses the same lobby structure and cashier as Cosmobet, and its promotions page listed no casino welcome when we checked in September 2026. It leans on recurring offers instead, including wager-free free spins on Thursdays and Fridays with a €50 deposit and a promo code. The minimum deposit is €20.

The 10% casino cashback is the reason to look at it. It covers all deposits rather than crypto only, and it can be requested several times a day, but the published terms cap each cashback at €500 and cap withdrawals from it at 5 times the cashback amount. It also requires €100 in deposits since your last bonus or withdrawal, counted over the last 7 days. Cosmobet's own cashback pays once a month, on crypto losses only, at 30x.

For a regular Cosmobet player who values frequent loss-back over a one-off sign-up match, Goldenbet is worth its place. A player who deposits once and rarely returns will not see the benefit.

MyStake

MyStake runs on the same platform under a different company, GTW B.V., and licence OGL/2024/250/0115. Its casino welcome is a 300% package up to €1,500 across the first 3 deposits: 150% up to €750, 100% up to €500 and 50% up to €250, on slots only at 30x deposit plus bonus within 30 days. The minimum deposit is €20 and the maximum bet €5.

The different licence holder is the point to weigh, because a complaint about MyStake goes to GTW rather than Santeda. Its general terms carried no 10x-deposit win clause of the kind Cosmobet's has, and it gives 30 days to wager rather than 7. MyStake also adds proprietary Originals and a Prediction section marked as new, and pays its 10% monthly crypto cashback without wagering, where Cosmobet's carries 30x.

For a Cosmobet player who wants a fully published welcome, a month to clear it and crypto cashback without wagering, MyStake is worth a look. A player who wants 1,000 free spins gains nothing here.

Donbet

Donbet shares MyStake's operator and licence rather than Cosmobet's. Its footer and terms name GTW B.V., Curaçao company number 165433, and licence OGL/2024/250/0115. The operator's own mobile site titles its welcome as 150% up to €750, and we could not establish its wagering, minimum deposit or withdrawal limits, because Donbet's site blocked our checks with a security challenge.

Where Cosmobet leads with its casino lobby, Donbet opens with the sportsbook. Cosmobet already runs a 150% sports welcome up to €1,000 and a weekly 20% sports bonus, so Donbet adds little on sport alone.

For a Cosmobet player who bets mainly on sport and prefers a different licence holder, Donbet is the only sports-first option in the group. Read its bonus terms yourself before depositing, because we could not.

Welcome offers and payment terms

The table separates 2 limits that constrain different things: the bonus win cap, which limits what a bonus can pay out, and the monthly ceiling, which limits total cash-out from the account. Where a figure was not in the terms we read, the table says so rather than implying a check that did not happen.

What you keep when you switch, and what changes

Santeda runs Cosmobet, Velobet, Rolletto, Goldenbet and Zizobet on the same Upgaming platform, with the same lobby structure, crypto-forward cashier, €7,500 weekly and €15,000 monthly withdrawal limits and identity checks that can be triggered at withdrawal. Affiliate material that presents these as 5 separate casinos is describing one product in several colours. MyStake and Donbet share the platform, but not the licence.

The differences that remain are short. Zizobet pays more on large deposits. Velobet gives 30 days to wager. Rolletto has the biggest cap and the hardest wagering. Goldenbet pays cashback on request. MyStake holds a different licence. Donbet leads with sport. Nothing else is shared: each brand has its own registration, balance, verification, inactivity clock and self-exclusion.

How the ownership links were checked

Cosmobet's company details name Santeda International B.V., Curaçao company number 151296, and licence OGL/2024/1798/1048 from the Curaçao Gaming Authority, with Santeda International Limited of Limassol, Cyprus, as payment agent. We read the same entity and licence on the Velobet, Rolletto, Goldenbet and Zizobet company pages in September 2026. The test a reader can run is the same: a site whose footer names Santeda and OGL/2024/1798/1048 is on Cosmobet's licence. The test confirms a shared licence, so read it as strong evidence of a sister relationship, not absolute proof of one.

MyStake and Donbet appear on many Cosmobet sister-site lists, and both fail that test, because their footers name GTW B.V., company number 165433, and licence OGL/2024/250/0115. They belong in this comparison because of the platform and the reporting around it. In February 2026 NEXT.io reported the group moving its brands' footers from Santeda to GTW, and in April 2026 the Guardian described MyStake as one of at least 8 apparently connected brands on the same network.

Two caveats attach to both companies rather than to any single brand. As observed in the Curaçao Gaming Authority's licence registry edition of 20 August 2026, both licences showed an expiry date of 24 December 2025 and a status of assessment in progress, which applies to every brand on each licence. In May 2026, NEXT.io and GamblingNews reported that both Santeda International B.V. and GTW B.V. had been dissolved, while the sites kept trading. Cosmobet's company details still named Santeda when we checked in September 2026, which means a complaint may have no clearly identifiable company to answer it.

Risks, protections and self-exclusion

Outside the Gambling Commission's regime you lose the protections that come with it. These operators do not apply its deposit-limit and affordability rules, and they are not bound to its complaints and dispute-resolution process. GAMSTOP does not cover these sites, and we found nothing in the terms we reviewed that extends a self-exclusion from one brand to another, so treat each exclusion as applying only where you set it.

If you have self-excluded through GAMSTOP, these sites sit outside the protection you chose, and that exclusion exists for a reason. Free, confidential support is available from GamCare and the National Gambling Helpline on 0808 8020 133, run by GamCare, and GAMSTOP covers every site licensed in Great Britain.

If you do play, 2 steps prevent avoidable harm. Complete identity verification when you sign up, so a first withdrawal is not held for documents. Read the 7-day wagering deadline, the bonus win cap and the €15,000 monthly limit before depositing money you would mind losing.