Mystery Bonus Time Again at Harrah’s Online!


It seems like only yesterday that I was posting an article all about an exciting Mystery Bonus at Harrah’s Online Casino. But it was actually last month.

Many players, and hopefully you were among them, must have accessed this promotion before and liked it, as Harrah’s has clearly gotten the message. This weekend, by popular demand, the Harrah’s Mystery Bonus is back again!

In fact, the entire promotion is identical to the last time, including the three possible prizes up for grabs:

  • $10 in bonus play
  • $25 in bonus play
  • $50 in bonus play

The mystery is not whether you will get one of these bonuses. As long as you make at least the minimum qualifying deposit, you will because the bonus is guaranteed. The only thing about the bonus that remains a mystery is the amount.

How to Claim Your Harrah’s Online Casino Mystery Bonus

The Harrah’s Online Casino Mystery Bonus is open to all registered players. The promotion runs from Thursday, October 11 through Saturday, October 13.

You can only access this bonus once, so pick whichever of the three days is most convenient. Here are the steps you need to follow.

  • Log into your account anytime during the 10/11-10/13 promotion period.
  • Claim the offer using the bonus code MYSTERY.
  • Make a qualifying deposit, as specified in the marketing collateral.

As soon as your qualifying deposit is received, you will be randomly awarded $10, $25, or $50 in the form of Bonus Money.

Important Considerations

I don’t know why the promotion page on the casino’s website doesn’t state what the minimum deposit is. Instead you are told to check the “marketing collateral”. If you have difficulty finding this information, be sure to contact Customer Support and request it. Also let them know that in the future, all of the terms and conditions, including the deposit requirements should be clearly stated on the casino website..

By the way, in case you are wondering if you should deposit more than the minimum amount required, the answer is that you gain no advantage doing so. The size of your bonus is randomly determined and unaffected by the size of your deposit.

Deposits made at the Caesars Atlantic City casino cashier’s cage or via PayNearMe don’t count.

Wagering Requirements for the Harrah’s Online Casino Mystery Bonus

This October Harrah’s Online Casino Mystery Bonus is subject to the same wagering requirements and other terms and conditions as the September Mystery Bonus. The bonus can be cleared with any game of your choosing. However, only slots count 100%. If you choose to play any other game, the wagering requirements increase dramatically. These are the wagering requirements for the different types of games.

  • Slots: 5x bonus
  • Roulette: 25x bonus
  • Video Poker or Blackjack: 50x bonus

You have up to seven days to clear the bonus. While the bonus playthrough is in progress, not only the bonus itself, but also the deposit tied to the bonus and any resulting winnings are temporarily locked into your account. As soon as the wagering requirements are completed, all of this money (or whatever is left of it) will become available for withdrawal.

On the other hand, canceling the bonus, attempting to withdraw unavailable funds prematurely, or failure to complete the wagering within the allotted seven days will result in forfeiture of both the bonus and any resulting winnings.

Your Best Bet: Clear the Bonus with Slots

Because of the great disparity between the wagering requirements when the bonus is cleared with slots and the wagering requirements when the bonus is cleared with any other games, my recommendation is stick to slots. Don’t just play any random slots, though. Choose the best slots in the house (96% RTP or higher). This will maximize your chances for winning and also help you preserve more of your bankroll if luck is not going your way.

Why the Harrah’s Online Casino Mystery Bonus is a Great Offer

This is not the sort of promotion that will excite high rollers since all of the possible bonuses are small. However, most players, and small players especially, who might rarely qualify for a bonus otherwise, will welcome yet another opportunity to get a guaranteed bonus in exchange for a minimal deposit.

Another great feature is that the casino is giving you a full week to clear the bonus. That should be plenty of time for most players, particularly if the bonus is cleared with slots.

What this bonus has going for it is not the likelihood that it will turn you into a big winner—there’s only so much that a small bonus can do. Instead it’s a fun and affordable way to get some extra bang for your buck and hopefully make some money in the process. The fact that it’s a Mystery Bonus makes the offer so much more intriguing. The fact that your bonus is also guaranteed makes the offer irresistible.




Barbara Nathan
Barbara Nathan is both a professional writer and casino, poker, and sports betting expert. Originally from NYC, she relocated to Absecon, NJ in 2013 just prior to the official launch of New Jersey regulated online casino and poker gambling. Besides keeping tabs on important developments in the industry from day 1, Barbara is very familiar with what each NJ online casino has to offer. Her comprehensive, unbiased reviews and promotion descriptions provide a valuable service to NJ online casino players. Barbara also enjoys volunteering in the Atlantic City community. She is a certified literacy tutor at the Atlantic City Public Library.

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