The 55Bet welcome bonus is split in two: a casino offer of 100% up to €100 and a sports offer of 100% up to €200, both carrying a 35x wagering requirement. The casino is run by Novatech Solutions N.V. under a Curaçao licence, and the site is covered at siriussydney.com.au for players who want a closer look at the brand before depositing.
A 35x requirement means the bonus money has to be played through 35 times before it turns into withdrawable cash. Whether that figure applies to the bonus alone or to deposit plus bonus is set out in the bonus terms, so read them before you claim anything.
Welcome offer figures at a glance
- Casino welcome offer: 100% up to €100 on your first deposit.
- Sports welcome bonus: 100% up to €200.
- Wagering requirement: 35x on bonus funds.
- Ongoing promotions: 10% weekly cashback on slots, a 100% accumulator bonus, and 2 Goals Ahead early payout on football.
- Licence and operator: a Curaçao licence held by Novatech Solutions N.V.
What stands out in the 55Bet bonus package
The two-part structure suits different habits. A player who mostly spins slots takes the casino offer, while someone who follows football and racing can put the €200 sports bonus to work instead. The 35x figure is the same for both, so the choice comes down to which kind of betting you actually enjoy.
The provider list behind the casino is long and includes NetEnt, Play’n GO, Nolimit City, Big Time Gaming, Yggdrasil Gaming, Thunderkick, Relax Gaming and Evolution Gaming for live dealer tables. With around 4,000 games across slots, live casino and sportsbook, there is plenty of choice for clearing a wagering requirement, though not every game necessarily counts the same towards it.
The ongoing promotions add value after the welcome offer is gone. Weekly cashback of 10% on slots returns part of your losses, the accumulator bonus tops up qualifying multis by 100%, and 2 Goals Ahead pays out a football bet early once a team leads by two. Cash rewards also arrive at each VIP level up, alongside sportsbook free bets and casino cashback.
Our preference for a first-time claimant is the casino offer, for a simple reason: the €100 cap is smaller, so the 35x requirement is easier to clear than on the €200 sports side. A hypothetical €50 deposit at the casino, matched at 100%, gives €50 in bonus funds. At 35x that is €1,750 of wagering on the bonus alone, or €3,500 if the terms count deposit plus bonus. Either way, the smaller bonus keeps the total lower.
What to read in the bonus terms before you deposit
- The wagering base: the terms decide whether only the bonus or deposit plus bonus has to be played through 35 times.
- Game weighting: check which titles count in full, in part or not at all towards the requirement.
- Payment restrictions: Skrill and Neteller depositors cannot claim the welcome bonus, so use another method if you want it.
- Time limit: confirm how many days you have to meet the requirement before bonus funds expire.
- Maximum bet: look for a cap on stake size while a bonus is active.
Where players trip up on the 35x requirement
- Depositing with Skrill or Neteller and expecting the welcome bonus. Those two e-wallets are excluded from the offer, so pick Visa, Mastercard, Paysafecard, Bitcoin or another listed method instead.
- Assuming the 35x applies to the bonus only. If the terms count deposit plus bonus, the total to wager doubles, so confirm the base first.
- Spending the bonus on games that count little or nothing towards wagering. Check the weighting table before you play.
- Forgetting the deadline. Bonus funds usually expire after a set period, and an unmet requirement can wipe them out.
- Overlooking possible withdrawal fees. These can eat into a small win, so factor them in before you request a payout.
A €100 casino bonus at 35x means €3,500 of play if only the bonus counts, and a €200 sports bonus means €7,000. That gap is worth knowing before you choose which offer to claim.
Gambling is for adults only, 18+. If gambling stops being fun, free and confidential support services in Australia can help. Play only with money you can afford to lose, and treat a bonus as entertainment rather than a reason to deposit more than you planned.
How to claim the welcome offer step by step
- Register an account with accurate personal details, since verification comes later.
- Choose the casino or sports welcome offer and check whether a bonus code is required at deposit; the terms state this, and we found no code listed.
- Deposit with an eligible method, avoiding Skrill and Neteller.
- Read the wagering base, game weighting and expiry date before you start playing.
- Play through the 35x requirement within the time limit, keeping stakes within any cap.
- Request a withdrawal once the requirement is met, and allow for possible fees.
Licence, operator and our verdict on the bonus
siriussydney.com.au operates under a Curaçao licence held by Novatech Solutions N.V. That licence is not from Australia. Before depositing, a player can check the operator name in the site footer, read the bonus terms in full, and ask live chat, which is available before and after registration, about anything unclear in the offer.
Our verdict for this angle: the two welcome offers are straightforward in shape, and the 35x requirement sits on the bonus rather than being buried. The catch is the Skrill and Neteller exclusion, which rules out the bonus for e-wallet users, and possible withdrawal fees that can shrink a modest win. For players who deposit by card, bank transfer or crypto, the package is workable, provided the terms confirm the wagering base. This text draws on what the operator states and on public reviews and player reports, and it was last updated in November 2026. We made no deposit or withdrawal ourselves, and where this text and the operator’s terms differ, the terms apply.