OnlySpins Casino Bonus - €3,750 + 250 Free Spins

OnlySpins Casino Deposit Bonus - €3,750 Welcome Bonus

The core welcome deal at OnlySpins is a €3,750 + 250 Free Spins deposit bonus aimed squarely at slot-focused players. I activated it on my first deposit, and the bonus funds were credited instantly after payment confirmation. It’s a straightforward match that doubles your starting balance, which is ideal if you want more room to explore the slot lobby without committing too much upfront.

What I appreciated here is the clarity. The bonus applies to the first deposit only, and eligible games are clearly marked. I didn’t have to dig through hidden menus to understand where the bonus could be used, which made testing it far less frustrating than at many competing casinos.

How to Claim the OnlySpins Casino Bonus

Register

Register an account at OnlySpins Casino.

Verify

Verify your email and log in.

Deposit

Make your first deposit in euros.

Select bonus

Select the €100 welcome bonus in the cashier.

No Deposit Bonuses at OnlySpins Casino - 5 Free Spins

As confirmed by our OnlySpins Casino review, it also runs occasional no deposit free spins offers, typically giving 5 free spins on selected slot titles. These are usually tied to seasonal promotions or short-term campaigns rather than being permanently available.

When I claimed mine, the spins were credited after account verification and could be used instantly. While five spins won’t change your bankroll, they’re useful for testing a new slot or getting a feel for the platform without risking your own money.

OnlySpins Free Spins Bonuses

Beyond the welcome deal, OnlySpins frequently includes free spins bonuses on specific slot games, most commonly on popular titles like Book of Dead or Starburst. During my testing period, I received 5 free spins on Book of Dead as part of a reload promotion.

These spins usually come with fixed stake values and standard wagering rules. I found them easy to use, and they’re a solid extra for slot players who stick to the promoted games rather than jumping randomly across the lobby.

OnlySpins Casino Bonus Terms and Conditions

Most OnlySpins bonuses come with wagering requirements that must be completed before withdrawals. In my case, bonus funds had to be wagered 40x, which is fairly standard but still something to plan for if you’re playing with smaller bets.

There are also max bet limits while wagering a bonus, and not all games contribute equally. Slots typically count 100%, while table games contribute little or nothing. Reading the bonus terms before activating saved me from making costly mistakes.

OnlySpins Casino Bonus Codes

At the time of testing, no bonus code was required to claim the standard welcome offer - it activated directly in the cashier. That said, OnlySpins does occasionally release exclusive bonus codes via email or partner promotions.

These codes can unlock extra free spins or improved deposit matches, so it’s worth opting into marketing emails if you want access to limited-time offers.

Welcome Package

3,750€ + 250 Free Spins

1st Deposit

1,500€ + 100FS

Win rate

96.70%

Payout time

0-2 Hours

OnlySpins Casino Existing Customer Bonuses

For returning players, OnlySpins offers reload bonuses, free spins campaigns, and occasional cashback-style deals. I received a midweek reload offer after a few sessions, which kept things interesting without feeling overly aggressive.

Loyalty rewards aren’t heavily gamified, but consistent players do get access to better promos over time. It’s more subtle than a flashy VIP system, but still worthwhile if you play regularly.

OnlySpins Casino Existing Customer Bonuses

For returning players, OnlySpins offers reload bonuses, free spins campaigns, and occasional cashback-style deals. I received a midweek reload offer after a few sessions, which kept things interesting without feeling overly aggressive.

Loyalty rewards aren’t heavily gamified, but consistent players do get access to better promos over time. It’s more subtle than a flashy VIP system, but still worthwhile if you play regularly.

Summary of OnlySpins Casino Bonus

Review by

Jacob Evans

18

Last updated December 18, 2025

After spending real time testing the promotions, I’d say the OnlySpins Casino bonus system is built with clarity and slot players in mind. The welcome offer is easy to activate, the free spins are tied to recognizable games, and the wagering rules are clearly outlined before you commit.

My Verdict

What really works is consistency. Reload offers, occasional no-deposit spins, and targeted promos for existing players keep things fresh without overwhelming you. It’s not the flashiest bonus ecosystem on the market, but it’s practical, transparent, and playable - exactly what most players actually need.