Best Slot Bonuses for USA Players

📝 ❘ ✅ Verified by Enrico

Slot machines are by far the most popular games available at online casinos worldwide, and USA-facing online casinos are no exception. That’s why many operators offer slot bonuses designed with slot enthusiasts in mind. They can be a great way to start your online casino adventure as they enable you to play your favorite slot games without risking your hard-earned money.

Slot bonuses come in all shapes and sizes, from deposit-based offers to free spins. AllStarGambling brings you a comprehensive guide to slot bonuses and the best online casinos offering them.

335% up to $3,350 (3 times)

Nice Welcome Bonus With Free Spins
Comp Points And Ongoing Promos
Instant Play, Download and Mobile Casino

400% up to $8,000

Huge Welcome Bonus And Promotions
200+ Available RTG Games
Mobile Casino, Instant Play, and Download

250% up to $1,000 + 125 Free Spins

Generous welcome offer up to $5,000
Trusted operator focused on USA players
Very good live dealer lobby (try BJ)

100% up to $1,000

Big Game Range + Sportsbook, Racebook, eSports, Poker
Fair Bonuses And 24/7 Support
Hassle-free And Fast Bitcoin Payouts

400% up to $4,000 First Deposit plus 100 Free Spins

Instant withdrawal casino (Crypto)
Great welcome bonus with FREE Spins
Decent slots and live casino games

100% up to $800

180+ Games (Browser, Download, Demo)
Decent VIP Program And Promotions
Wide Range Of Payment Options

200% Welcome Bonus

Download Casino
Instant Play & Progressive Jackpots
VIP Program

200% up to $1,000

Huge Deposit Bonuses And Free Spins
Cash Back On Losses
Instant Play, Download & Live Dealer Casino


150+ RTG Casino Games (Browser, Download)
Massive Bonuses And Promotions
Legit VIP Program And 24/7 Support
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Best Online Casinos with a Slot Bonus Only

Since slot games compose the biggest part of any online casino’s portfolio, we can consider them all slot sites. Although online gambling is not regulated in most US states, players can still choose from a plethora of trusted gaming establishments where they can enjoy slots and other casino games. All of them offer casino bonuses, and most of them can be used to play slot games. We have reviewed some of the best online casinos offering slot bonuses and provide you with the list of the best ones catering to USA players. Register with those you like best and start using the best slot bonuses

Slot Bonus Types

At the best USA online casinos, you can find a variety of bonuses and promotions available to players from the get-go. Most of them are given away based on a deposit, but some require no deposit at all. Here is a lowdown on the most common types of slot bonuses.

Welcome Bonuses

This is a deposit-based bonus designed to attract new customers. It is the most common bonus type you will come across at USA online casinos. Sometimes, a welcome bonus can be given over several initial deposits and include a batch of free spins. Winnings you obtain from the use of a welcome bonus are subject to wagering requirements in most cases.

Welcome bonuses are typically expressed as a percentage that matches your deposit, such as 100% or 200%. At the same time, the operator will limit the maximum amount you can receive as well as the maximum cashout. To receive the bonus, you need to make the minimum allowed deposit.

No Deposit Bonuses

Just like its name suggests, a no deposit bonus is an offer you can receive without topping up your casino account. These deals come in smaller amounts, typically around $10. Another form of this type of casino offer may come as a free spins no deposit bonus given on a slot game selected by the operator. Most casinos offer no deposit bonuses to new customers. These bonuses are also subject to wagering requirements with the maximum cashout set by the casino.

Free Spins

Besides free spins that come included in the welcome package and free spins no deposit, US players can also make use of free spins promotions given on the latest slot releases or popular games. You get a set of free spins when you make a required deposit and play them on the games chosen by the operator. These offers vary, so some of them come with wagering requirements while others don’t.

Reload Bonuses

These offers are designed for existing players who can claim them to increase their bankroll. They function in the same way as to welcome bonuses, meaning that they are credited to the player based on the amount of their deposit.

Slot Tournaments

If you are a big fan of slot machines, slot tournaments may be the best option for you. They are all about competing against other players while enjoying the qualifying games selected by the operator. Some of them require no buy-in at all, so you can play them for free for a set amount of time and climb the leaderboard for a share of the prize pool.


200% up to $1,000

How to Claim a Slot Bonus?

Claiming a slot bonus is as easy as it gets. Let’s go through all steps you need to take to complete the procedure.

1. Pick a reputable online casino

It all starts with choosing an online casino where you will play slot games in a safe and fair environment. It should be regulated and licensed by a trustworthy gaming body, offer games from established providers, and enable you to make secure and quick transactions.

2. Create a casino account

Once you have chosen the casino, complete the registration procedure to create a new casino account. Enter your personal details, including your name and surname, email, address, and phone. Agree to terms and conditions and verify your email to log in to your account.

3. Claim the welcome bonus

After you have completed the sign-up procedure, go on, and claim the welcome bonus. You will be required to make a deposit in order to get the bonus. In case you are offered a no deposit bonus, you will just need to login to your account, and free cash or free spins will be credited to you. Some casinos may require you to enter the unique code to unlock the bonus. Just copy and paste it in the required field to redeem the bonus.

5. Start playing your favorite slots

When the bonus is added to your account, you can use it on the slot games to your liking. Pay attention to the maximum bet you can place as exceeding it can result in losing the free cash. In case you have received free spins, they will be available on the selected slot games, so you can just start playing them. Meet wagering requirements to clear winnings from bonuses from your account.

Slot Bonus Offers You Should Avoid

Not all online casino offers are worth it. Some of them carry wagering requirements set high, meaning that you won’t be able to meet them within a given period of time or that you have to wager a fortune to release the bonus. Any bonus that has a wagering requirement, also known as playthrough, higher than 40x the bonus is not worth your time or money.

Before you claim a slot bonus, make sure to study the terms and conditions. Learn all about the offer, including the maximum bet, the timeframe within you have to complete the playthrough, eligible games, and wagering requirements to see whether it is a good fit for you. If you are on a budget, lookout for the best online casinos offering no deposit bonuses or free spins.

What are Wagering Requirements?

You will rarely find a casino bonus with any wagering requirements attached. They are included in most slot bonuses whether you claim free cash or free spins. From welcome bonuses to reload bonuses and rewards, you can win taking part in slot tournaments or other promotions, all of these are typically subject to wagering requirements. In other words, you have to complete the playthrough to release your winnings.

How welcome slot bonus works: You register with the RTG casino, make a deposit, and receive a welcome bonus.

How wagering requirements work: If you receive a $100 bonus subject to a 35x the bonus wagering requirement, you need to wager $3,500 in real cash to release your funds. Keep in mind that you have to wager this amount within the given period, which is typically limited to 30 days. At some casinos, wagering requirements apply to both deposit and bonus, so read the terms and conditions attentively.

Eligible games: Besides checking the wagering requirements, you need to check which games you can play to complete the playthrough. Some may not be eligible at all, while bets placed on others contribute at a lower rate, like a table or card games contribute like live blackjack 10% or 20% only

How to Find Best Slot Bonus?

If you are still wondering how to find the best slot bonus, here is a list of things you should do to make sure the offer is right for you.

Set your bankroll: It is essential to know how much money you can spend on online gambling. Check bonuses and see whether you can make a qualifying deposit to get them.

Pick a reputable online casino: You should claim slot bonuses only on trusted gambling sites.

Read terms and conditions: Before you claim any offer, read the terms and conditions and check whether they are acceptable. Wagering requirements should be set at up to 40x the bonus. Also, study the list of eligible slot games and check how much time you have to complete the playthrough.


200% up to $1,000

Best Online Casino Slot Bonus FAQ

Where to find the best slot bonuses?
The best slot bonuses are available at trusted US-facing online casinos. You can find them on gaming portals, such as ours that provides you with a list of the best USA online casinos.

Do I need a casino account to claim a bonus?
Yes, you must complete the registration procedure to claim any slot bonus including the welcome offer.

Do I need a promo code to redeem a slot bonus?
Some slot bonuses require promo codes you will find attached on the offer itself.

Why reading bonus terms and conditions is crucial?
Bonus terms and conditions contain all the information regarding the offer you want to claim. Based on them, you can decide whether the bonus is worth your time and money or not.

How to check bonus wagering requirements?
Wagering requirements are included in bonus terms and conditions. They are expressed as a multiplier like 30x or 40x, for instance.

Can I benefit from a loyalty scheme on slot sites?
Most online casinos today offer loyalty schemes designed to retain regular players. Typically, you will earn comp or loyalty points as long as you play slot games with real money.

Can I redeem the same slot bonus more than once?
It depends on the offer. In case of welcome bonuses, they can be claimed only once, while some promotions are available for a period of time and you can redeem the offer multiple times within it.

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Written by Emily Roberts

Emily RobertsEmily Roberts, a dynamic and passionate expert in the realm of online gambling, brings a fresh perspective to the world of online slot games and the intricacies of casino bonuses. With her in-depth knowledge and years of experience, Emily has established herself as a prominent voice, empowering players with insights that enhance their gaming adventures.

Emily’s journey in the realm of online gambling is marked by her strong academic foundation. Holding a Bachelor’s degree in Marketing from a renowned university in the United States, Emily’s educational background has equipped her with a keen understanding of consumer behavior, gaming trends, and strategic analysis.