Osiris Casino No Deposit Bonus Codes

Osiris Casino was once a recognizable name in the online gambling world, drawing players in with bold welcome packages and a library of games from respected software providers. However, as of March 31, 2025, the casino permanently closed its doors and no longer accepts new registrations. It has since been flagged and blacklisted by several independent review platforms, primarily due to bonus terms that were considered unfair to players.

This article covers what Osiris Casino offered in terms of no deposit bonus codes and promotional deals before its closure - so you can understand what was available, what the fine print looked like, and why those terms raised red flags across the industry.

What Osiris Casino Was All About

Osiris Casino was operated by Conan Gaming Limited and held a license from the Malta Gaming Authority. It offered games from a solid lineup of software developers, including Betsoft, NetEnt, Play'n GO, Wazdan, and several others. Players could choose from video slots, table games, and live dealer options, with support for currencies including United States dollars, euros, British pounds, and more.

Payment options were extensive, covering everything from Visa and Mastercard to Bitcoin, Skrill, Neteller, and bank wire transfers. On paper, it looked like a well-rounded platform. The reality, however, was more complicated - particularly when it came to bonuses.

The No Deposit Bonus Codes That Were Available

Osiris Casino did offer no deposit free chip bonuses at various points in its history. These promotions required players to enter a specific code at the casino cashier to claim the reward - no deposit was needed to unlock them.

Two of the most commonly referenced no deposit offers included a $50 free chip using the bonus code GRATIS50 and a €10 free chip available with the code 10GRATIS. There was also a free spins promotion tied to the slot Thunder Zeus, which similarly required a code to activate. All of these bonuses carried a 45x wagering requirement on the bonus amount and were restricted to slot gameplay only.

It is important to note that all of these no deposit promotions have long since expired. They were time-limited offers and are no longer redeemable. Given that the casino itself has closed, none of these codes hold any value today.

The Welcome Bonus Package - A Closer Look

While no deposit codes were available periodically, the main attraction at Osiris Casino was its multi-step welcome bonus. The package unfolded across the first three deposits and was activated automatically - no code was required.

The first deposit unlocked a 300% match bonus up to €900, plus 20 free spins. The second deposit brought a 350% match with 30 free spins, and the third pushed things even further with a 400% match and 40 free spins. A minimum deposit of €20 was required at each step.

Those match percentages sound impressive, but the wagering requirements told a different story. Every bonus came attached to a 45x requirement applied to the combined total of the bonus and deposit amounts. That is significantly higher than the industry standard, which typically falls somewhere between 20x and 35x. For example, if you deposited €20 and received a €60 bonus on the first step, you would need to wager €3,600 before any winnings could be withdrawn.

There was also a payment method bonus available, offering up to $1,000 depending on how you funded your account.

Why the Bonus Terms Were a Problem

The 45x wagering requirement was the central issue that led to Osiris Casino being blacklisted by multiple review sites. But it was not the only concern.

If a player submitted a withdrawal request before completing the wagering requirements, every active bonus - including any pending free spins - was automatically cancelled. That kind of policy puts players in a difficult position, especially when the wagering threshold is already set so high.

Game contribution rates also worked against players. Live dealer games like roulette, blackjack, and baccarat contributed only 10% toward the wagering requirement, meaning they were essentially not a practical way to clear a bonus. Certain games were excluded entirely. Slots were the primary eligible game type, which limited flexibility considerably.

Monthly withdrawal limits were capped at $5,000, with a minimum withdrawal of $100 per transaction. For players who managed to work through the requirements, getting money out was a slow process.

Games You Could Play at Osiris Casino

Despite its bonus problems, Osiris Casino did have a respectable game library. Betsoft titles were particularly prominent. Players could spin the reels on Triple Juicy Drops Slots, a cluster-pays video slot loaded with fruit symbols and a three-tier prize wheel bonus that could deliver up to 15 free spins. It was a fun, visually vibrant game with a playful energy.

For fans of ancient history, Coins of Ra Slots offered an Egyptian-themed 3-reel experience with a Hold & Win feature and a max bet of $50. The symbols - scarabs, ankhs, pyramids, and gems - gave it a classic feel with modern mechanics underneath.

Hearts Desire Slots leaned into classic slot nostalgia with 30 paylines, stacked mystery symbols, free spins, and even a progressive jackpot feature. With a max bet of $120, it appealed to players who liked a bit more flexibility in their wagering range.

If you preferred something with a little more edge, Golden Dragon Inferno Slots brought an East Asian theme to life across 243 ways to win, with nudging multiplier wild reels and a Hold & Win bonus that could stack up nicely.

Greek mythology fans had The Golden Owl of Athena Slots to explore - a 10-payline video slot with up to 20 free spins and a Double Up Game that added a risk-reward element to each session.

Rounding things out, Take The Vault Slots put players in the middle of a heist-themed adventure across 75 paylines, featuring a Buy Feature, a Hold & Win mechanic, and 15 free spins - all with a max bet of $300 for high rollers who liked to go big.

What Players Should Take Away From This

Osiris Casino is a cautionary example of how attractive bonus numbers can mask unfair terms. A 300% welcome bonus sounds like a great deal until you factor in a 45x combined wagering requirement, strict game restrictions, and automatic bonus cancellation if you try to withdraw early.

The no deposit bonus codes - GRATIS50 and 10GRATIS - were real promotions at the time they were offered, but they are expired and the casino no longer operates. There is no way to claim them today.

If you are searching for a trustworthy online casino with fair bonus terms and transparent conditions, the most important things to look for are reasonable wagering requirements (ideally 30x or lower), clear game contribution tables, and a platform that is properly licensed and actively regulated. Always read the full terms before claiming any bonus, and make sure the casino you choose is still open and in good standing with industry watchdogs.