Are you looking for a 400% casino deposit bonus?
Competition between online casinos has led to an increase in bonus offers and other incentives. Typically, the higher the casino bonus the rare it is. One of the rare online casino incentives is the 400% bonus which multiplies your initial deposit by four. If you intend to try your luck on an online casino, you should consider starting with a 400% bonus when you sign up.
These are the best 400% welcome casino bonuses we offer in India.
18+ | Terms & conditions apply.
- ✓ Doors of Fresh
- ✓ Bonus Code: 50FREE25
- ✓ 100% up to ₹30,000
18+ | Terms & conditions apply.
- ✓ 200 Bonus Spins
- ✓ Burning Wins classic 5 lines
- ✓ 200% Sports betting
18+ | Terms & conditions apply.
- ✓ Jet Air (BGaming)
- ✓ Bonus Code: 50FREE25
- ✓ 100% up to ₹30,000
18+ | Terms & conditions apply.
- ✓ Min. Deposit ₹1,025.09
- ✓ 240% on 2nd deposit
- ✓ Multiple bonuses
18+ | Terms & conditions apply.
- ✓ 3 Coin Volcanoes (3 Oaks)
- ✓ Bonus Code: SBIN100FS
- ✓ ₹24,900 Bonus & 30 Spins
18+ | Terms & conditions apply.
- ✓ Book of Fallen
- ✓ Code: ZM20
- ✓ 100% up to ₹50,000
18+ | Terms & conditions apply.
- ✓ Dead or Alive
- ✓ 100% up to ₹22,200
- ✓ 22 Spins on Starburst
18+ | Terms & conditions apply.
- ✓ Alien Fruits (BGaming)
- ✓ Bonus Code: 50FREE25
- ✓ 150% up to ₹30,000
18+ | Terms & conditions apply.
- ✓ Doors of Sol
- ✓ Bonus Code: 50FREE25
- ✓ 100% up to ₹30,000
18+ | Terms & conditions apply.
- ✓ Asgardian Rising (PG Soft)
- ✓ Code: 50ZAMSINO
- ✓ ₹26 400 Bonus & 30 Spins
18+ | Terms & conditions apply.
- ✓ 150 Bonus Spins
- ✓ John Hunter and the Book of Tut slot
- ✓ Code: LETSGO
18+ | Terms & conditions apply.
- ✓ Book of Dead
- ✓ 121% Match Bonus
- ✓ 100% up to ₹30,000
18+ | Terms & conditions apply.
- ✓ 50 Bonus Spins
- ✓ Code: WELCOME1
- ✓ €20 minimum deposit
18+ | Terms & conditions apply. | PlayGrand Casino.
- ✓ Book of Dead
- ✓ 100% up to ₹30,000
- ✓ 30 Bonus Spins
18+ | Terms & conditions apply. | BetUnlim Casino.
- ✓ Mummyland Treasures
- ✓ Code: DREAMWW
- ✓ 200% up to ₹100,000
18+ | Terms & conditions apply.
- ✓ Play'n Go games
- ✓ 100% up to ₹30,000
- ✓ 50 Bonus Spins
18+ | Terms & conditions apply.
- ✓ 25 Bonus Spins
- ✓ Book of Gods
- ✓ 100% Reload Bonus
18+ | Terms & conditions apply.
- ✓ 100% Casino Bonus
- ✓ Minimum Deposit 750 INR
- ✓ Sportsbook
18+ | Terms & conditions apply. | Jonny Jackpot Casino.
- ✓ 100 Spins on Starburst
- ✓ Fast Withdrawals
- ✓ ₹100 Minimum Deposit
18+ | Terms & conditions apply.
- ✓ 100 Bonus Spins
- ✓ Starburst or Gonzo’s Quest
- ✓ ₹500 Min. Deposit
18+ | Terms & conditions apply.
- ✓ ₹100 Cash Bonus
- ✓ ₹1000 Min. Deposit
- ✓ UPI, iNB, RuPay
18+ | Terms & conditions apply.
- ✓ Betsoft - Lava Gold
- ✓ Code: ZAMSINO
- ✓ 250% Bonus + 25 Spins
18+ | Terms & conditions apply.
- ✓ Book of Dead
- ✓ 100% up to ₹30,000
- ✓ 90 Bonus Spins
18+ | Terms & conditions apply.
- ✓ Free Spins Everyday
- ✓ Sportsbook
- ✓ 100% bonus
18+ | Terms & conditions apply.
- ✓ 100% Bonus
- ✓ ₹500 Min. Deposit
- ✓ 10% Weekend Cashback
18+ | Terms & conditions apply. | Lilibet Casino.
- ✓ Non Sticky Bonus
- ✓ 100% Bonus
- ✓ Up to 10,000₹ Cashback
18+ | Terms & conditions apply.
- ✓ 40 Bonus Spins
- ✓ Starburst Xxxtreme
- ✓ 100% Bonus
18+ | Terms & conditions apply.
- ✓ 200 Bonus Spins
- ✓ Cashback Offers
- ✓ 100% Bonus
18+ | Terms & conditions apply.
- ✓ Book of Bons
- ✓ Code: ZAMSINO
- ✓ 200% Match Bonus
18+ | Terms & conditions apply.
- ✓ Golden Avalanche
- ✓ Download WPT Global
- ✓ $1200 poker bonus
18+ | Terms & conditions apply.
- ✓ 20% on all your net losses
- ✓ Get up to $200 daily
- ✓ Crypto Currencies
18+ | Terms & conditions apply. | King Billy Casino.
- ✓ 100 Bonus Spins
- ✓ Book of King Billy
- ✓ No Maximum Win
18+ | Terms & conditions apply.
- ✓ 100 Bonus Spins
- ✓ Tower of Fortuna
- ✓ 100% Bonus
18+ | Terms & conditions apply.
- ✓ 100 Bonus Spins
- ✓ Book of Dead
- ✓ 100% Match Bonus
18+ | Terms & conditions apply.
- ✓ 20 Bonus Spins
- ✓ Book of Dead
- ✓ 100% Match Bonus
18+ | Terms & conditions apply.
- ✓ Live casino
- ✓ 10% cashback
- ✓ 100% bonus
18+ | Terms & conditions apply.
- ✓ 99 free spins
- ✓ 10% cashback
- ✓ 100% bonus
18+ | Terms & conditions apply.
- ✓ Book of Dead
- ✓ Much Better
- ✓ 100% bonus
18+ | Terms & conditions apply. | Voodoo Dreams Casino.
- ✓ 200 free spins
- ✓ Book of Dead
- ✓ Live casino
18+ | Terms & conditions apply.
- ✓ On First deposit
- ✓ 10% Cashback Offer
- ✓ UPI Deposit
18+ | Terms & conditions apply. | PariMatch Casino.
- ✓ 150% Match Bonus
- ✓ ₹350 Min. Deposit
- ✓ Live Casino & Betting
Table of Contents
The best 400% online casino bonuses in one place
You have come to the right place if you are looking for the best casino with a 400% bonus. The objective is to give players the best possible offers from safe and trustworthy casinos. Below you will the best online casinos with a 400% bonus when you make your first deposit. Our team has done all the hard work of testing, going through terms, and reading through player reviews.
Recommended online casinos
Apart from the list provided above, there are other exceptional online casinos with a standard bonus offer. Regardless, the player experience for these platforms is anything but average. Understanding that their platforms have some unique features, these casinos don't see the need to include huge bonuses. Here is a list of the top recommended casinos:
Safety first
For a casino to be considered on the list of the best 400% bonus offer, it should be highly trustworthy and acclaimed by players. It is our policy to protect the safety of our visitors as well as protect our brand. Our readers need to have a pleasant experience vising one or more of our recommended sites.
A rogue casino can easily be identified by the terms they use on bonuses. Fair casinos have attainable wagering required which are within a reasonable time frame. Other bad casinos are known to payout huge jackpots in increments and this could take years Always be on the lookout and choose wisely.
Casino bonuses in general
Everyone online casino player would love the chance to claim a bonus which can be in form of funds, free spins, or both. Bonuses give players a chance to try their luck on casino games without necessarily spending their actual account balance. This is merit especially if you are new to online casino gaming. Most of the 400% bonus offers are only available on this platform through the links.
Why Zamsino.com?
To build trust with our online casino players, we only list licensed and accredited casinos. As stated above, only casinos that have gone through a strict testing process get on the list. Unlike most of our competitors, we take full responsibility for all online casino operators we promote.
400% casino bonus — Downsides?
One downside of claiming a huge incentive like the 400% casino bonus is it results in more wagering. However, more wagering can be of great benefit depending on what kind of player you are and the situation. Go for bigger bets which have the possibility of yielding huge rewards.
What to keep in mind when claiming a large casino bonus
Most huge bonuses have wagering requirements that have to be fulfilled before you can cash out your winnings. Keep in mind that these conditions vary from one casino to the other. First, check if the bonus has an expiration date. Bonuses can be cancelled if not used within a specified period. Other things to consider include games you can play with the bonus and minimum required deposit.
Best 400% casino bonus sites
All online casinos listed on our platform are top quality with an excellent gaming experience. With that said, some casinos stand out from the list of best 400% bonus casinos. Furthermore, there are personal favourites for different online casino players. Here are our top picks.
FAQ
Due to the huge number of online casinos in the market, it might be difficult to choose the best casino with this bonus. However, our platform provides a list of the best online casinos for you to enjoy the 400% casino bonus.
To activate the 400% bonus, you have to deposit it into your account. The amount required to activate the bonus varies from one online casino to the other. Additional wagering requirements can also be applied.
Again, the inclusion of free spins depends on the online casino. We suggest that you go through the terms and conditions of each bonus for you to understand how it works. More often, these bonuses are accompanied by free spins.
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Erik King
Editor in Chief - Zamsino.com
I always loved gambling and probably always will, spending my time reviewing gambling sites to help people save time.
Last updated 12/02/25 by Erik King