28 Mars Casino: The Aussie Guide to Bonuses, Free Spins & Crypto Deposits

Welcome - if you've landed here, you're probably eyeing off a bonus at 28 Mars Casino (the AU-facing mirror of the long-running Mars brand available via 28marsbet-au.com) and you want to know what you're actually getting before you chuck a deposit in. Fair call. This guide walks through how the welcome package, the no-deposit "28 free spins" style deals, cashback, and the ongoing reload promos behave when you're actually spinning, not just how they look in a shiny banner.

I'll also go through the bits that tend to trip Aussie punters up: the max-bet cap (currently around A$7.50 a spin or hand), RTP (return to player) differences between game versions, and the extra quirks that come with crypto deposits. The goal's pretty simple: I want you going in with your eyes open so you don't get that sick "what just happened to my balance?" feeling when you try to cash out.

This guide is built for Australians who want to squeeze genuine entertainment value out of promos without falling into common traps - like accidentally breaching the bet cap or spinning on a low-RTP version of a slot without realising. And yeah, here's the uncomfortable bit: on paper, most casino bonuses are negative EV. That doesn't mean you can't hit a nice run - you definitely can - but from a maths point of view they sit in the same bucket as a night at the pub or tickets to the footy. If you use them properly, bonuses can stretch a session and let you try a few new pokies or table games while risking less of your own cash. Just don't treat them as a shortcut to winning - that's where people get burnt.

• Understand each major bonus type and what you really get for your money.
• See how the playthrough rules and RTP affect your chances of turning a bonus into cash you can actually pull out.
• Learn practical strategies and red-flag rules that protect your bankroll.

All Current Bonuses in One Place

Here you'll see the key 28 Mars Casino promos in one spot. Welcome match, free spins, reloads - the lot. I'll break down how each one works in real play and flag the rules you really don't want to miss before you fire up the pokies.

• Welcome match bonus in AUD or crypto for new sign-ups.
• No-deposit "28 free spins" style promos pushed through partners and affiliates.
• Reloads, cashback and the odd exclusive promo code for regulars and VIPs.

Bonus Types at 28 Mars Casino

28 Mars Casino runs a few familiar bonus categories if you've played on other SoftSwiss-powered sites. You'll keep bumping into the same core settings: 40x turnover on bonus funds, 45x on free-spin winnings, and a fairly tight max-bet lid while you're grinding through the rules. Those three things do most of the heavy lifting in terms of what a promo is "worth", so it's worth getting comfy with them.

Below is a breakdown of the main bonus types and how they usually work, with a focus on the bits that matter most to Aussie players - like whether a code plays nicely with crypto, whether table games move the turnover meter, and whether there's a hard cap on no-deposit freebie cashouts.

Welcome Bonus

The main welcome deal is usually a 100% match up to about A$100 or the crypto equivalent on your first deposit. Drop in A$100 and you'll typically see A$200 in your balance (your own cash plus the bonus) as long as you've opted in properly and hit the minimum deposit in the cashier.

On your first top-up they'll usually double you up to around A$100 in AUD (or the same in BTC or another listed coin). The catch is the usual one: roughly 40x turnover on the bonus amount, a fairly short window to churn through it, and that bet-size lid while you're grinding. To lock it in, pick the welcome deal on the deposit screen or type in a code like MARS100 if it's showing in your account, and keep your stakes at sensible levels on the pokies that count for the promo.

One practical tip that saves headaches: if you're the type to bump your stake up when you're chasing a feature, don't do it while a bonus is active. That's how people accidentally drift above the listed max-bet limit and end up having winnings voided. It's not personal; it's just the standard way most online casinos police promo rules.

No Deposit Free Spins ("28" Style Offers)

The "28" you see in searches and promo chatter is often tied to an affiliate-distributed code that gives roughly 28 free spins on one specific pokie - historically something like Platinum Lightning or a similar classic. The important thing to understand is that these no-deposit spins tend to come with tighter limits than deposit bonuses, especially around how much you can actually cash out.

• Amount: Usually around 20 - 28 free spins on a designated pokie that's named in the promo card.
• Turnover on winnings: Any wins from those spins are locked behind about 45x playthrough before they turn into withdrawable cash.
• Time limits: Spins are normally valid for only 24 - 72 hours after you trigger them, and you often get about a week to clear the turnover.
• How you claim: You punch in a no-deposit code in the cashier or during registration when the offer pops up.
• Cashout cap: There's usually a max withdraw around the A$50 mark; anything over that can be trimmed off at withdrawal time.

So if you fluke a decent hit on the free spins and the balance shoots past the cap, don't bank on withdrawing the whole lot. In many cases anything over that ~A$50 line is sliced away at cashout, which is a nasty shock if you've already day-dreamed about spending the full amount. It feels a bit rough the first time you see it, and honestly a bit stingy, but this is pretty standard across no-deposit promos - the site is basically spotting you a little "test drive" session.

Regular Reload Bonuses

Reload bonuses are match offers on later deposits (after your first), often tied to particular days, weekends or short-term campaigns. If you're the type who has a little Friday arvo flutter or a few spins while the Sunday night footy's on, reloads can be handy - as long as you're not topping up purely for the sake of triggering a bonus. I even mucked around with a reload right after the Eels snagged that NRL pre-season Challenge and you could tell everyone was suddenly talking futures odds for the season.

• Amount: Commonly 25 - 50% up to a modest cap, often around A$100, but the exact figures change from promo to promo.
• Turnover rules: Most reloads run on the same 40x bonus playthrough as the main welcome deal.
• Timing: Valid for a specific day or weekend, with a wagering window similar to the welcome bonus.
• How to grab them: Tick the reload box on the deposit screen and plug in any code mentioned in the promo blurb.
• Other rules: Keep stakes under the listed max-bet cap, stick to eligible pokies, and expect limited help from table games and video poker.

Cashback Offers

Cashback is usually framed as a percentage of your net losses over a set period (like a day or a week), and it usually comes back as bonus credit instead of straight cash. From the player side, cashback often feels "gentler" than a big match bonus because it reflects what actually happened during your session and the turnover requirement is typically lighter.

• Amount: Often 5 - 10% of your net losses across a day or week, capped at a fixed AUD or BTC amount.
• Turnover: Playthrough is typically lower than standard bonuses, somewhere in the 10 - 20x range, but always read the current rule before you opt in.
• When it arrives: Credited daily or weekly, usually with a fairly short window to clear the remaining turnover.
• Activation: Sometimes automatic, sometimes you need to click "Claim" in the bonus section of your account.
• Limits: Often slots-only, and you usually can't have another bonus running at the same time.

That last bit matters more than people think. It's common for cashback not to apply if you're already sitting on an active welcome or reload promo. It feels pretty tilting to sit through a rough session, expecting a little rebate, and then realise after the fact that the safety net never kicked in. So if you're scratching your head wondering why cashback didn't land, the "one active bonus at a time" rule is often the culprit.

Exclusive Promo Codes

Exclusive codes tend to come via email, social channels like Instagram and Facebook, or partner/affiliate sites that send traffic to 28 Mars Casino. These can be genuinely decent - sometimes you get a boosted match offer, sometimes a chunk of extra spins, and sometimes small no-wager "thank you" gifts aimed at VIPs or regulars. Every now and then you hit one that actually feels like a proper little windfall instead of pure marketing fluff, which is a nice surprise.

• Amount: Can be higher-than-normal match deals, extra free spins on certain pokies, or smaller no-wager "tribute" credits for VIPs.
• Turnover rules: Usually the same as the standard offer of the same type unless the email or promo card says otherwise.
• Timing: These are often short-lived, with many codes only valid for a few days or a single weekend run.
• How to use them: Drop the code into the bonus field on the deposit screen or in your account bonuses area.
• Other conditions: Region-specific eligibility and one-time use per account are very common with these.

Promo Codes & Where to Find Them

Promo codes do a lot of heavy lifting when it comes to unlocking the better offers at 28 Mars Casino, especially no-deposit free-spin campaigns and beefed-up reloads. Some public codes appear on the site itself, while the juicier ones tend to go through partners, email newsletters, or streamers.

You'll normally enter a code on the deposit page, or when you're activating a bonus inside your account. If you're on mobile and the bonus box isn't loading, it's often a browser hiccup - try refreshing or switching to another browser before you deposit so you can actually see the rules you're signing up for.

• Public codes: Often listed on the casino's bonuses & promotions page and sometimes in the lobby tiles.
• Exclusive codes: Sent via email, SMS, social posts, or shared by affiliate sites and streamers to their own audiences.
• Region-locked codes: Some codes only work for players from certain countries or using particular currencies.
• Expiry: Every decent code has an expiry date or limited use count, so always skim the small print.

Public codes are open to all eligible players, while exclusive ones are aimed at specific groups - higher-value punters, regular depositors, or followers of a particular creator. One thing I'd genuinely avoid: buying or swapping codes through random Telegram groups, Discord servers or forum threads. I've seen a couple of people lose their balances over dodgy codes that broke the rules; if it's not from the casino or a listed partner, skip it. Always make sure the offer actually shows as active in your account before you deposit.

Side-by-side: how the main 28 Mars deals stack up

Looking at bonuses side by side makes it much easier to pick what actually suits your style and bankroll. Two offers can look similar on the surface (same match %) but the turnover rules, game contribution rates, and any max-cashout caps can change the real-world feel a lot once you factor in RTP and how long you realistically want to grind through the playthrough.

The welcome and reload deals share the same 40x turnover and max-bet rules, but reloads usually come with a smaller match %. Free-spin bonuses tend to hit you with a hard cap on what you can cash out, while cashback deals usually feel a bit lighter on the rules but only kick in if you've actually had a losing stretch.

• Entertainment value: Free-spin and cashback offers usually feel the most relaxed, because the amounts are smaller and you're not staring down a giant turnover target.
• Chance of completion: Lower match amounts with standard turnover are often easier to finish than a huge percentage you'll never realistically clear.
• Risk level: Big bonus amounts sound great, but they come with a lot more total wagering and expose you to more of the house edge over time.

How to Get a Bonus Step by Step

Grabbing a bonus at 28 Mars isn't hard, but there are a couple of spots where people trip. The big one is that split-second before you hit "Deposit" - that's when it's easy to miss a code or tick the wrong offer.

1. Create an account or log in using your email and password.
2. Fill in your basic profile details and confirm your email address so the account is fully active.
3. Open the "Bonuses" or "Promotions" section in your account area to see what's currently running.
4. Look through the available offers, including the welcome deal, reloads, and any no-deposit free-spin promos.
5. Select the bonus you want and click "Claim" or tick the relevant checkbox on the deposit screen.
6. If a promo code is required, enter it carefully (for example MARS100 for the welcome offer or MARS28 for a free-spin promo) and double-check for typos.
7. Choose your payment method, such as Visa, Neosurf, or crypto like Bitcoin, and deposit at least the minimum amount listed in the promo card.
8. Confirm the transaction, then check your bonus and real-money balances in the wallet before you start playing pokies, table games or video poker.

• If you're depositing with crypto, make sure the specific promo doesn't say "fiat only" or exclude digital coins in the small print.
• Take a quick screenshot of the promo card or copy the key terms somewhere until your bonus is fully settled.
• If the bonus doesn't credit automatically, use the support option shown in the lobby (usually live chat or the help form) and ask them to check it before you continue playing.

If you want to get your ducks in a row before depositing, it's also worth having a look at the site's payment methods information so you're not guessing about minimums, processing times, or whether a particular promo applies to your chosen way to pay.

Bonus Terms and Requirements Explained

Getting your head around the jargon behind 28 Mars Casino bonuses matters a lot more than most people think. These rules shape the real "price tag" of using a bonus and decide whether winnings can actually be withdrawn. Any time you hear someone say "they stole my winnings", nine times out of ten it comes back to something like a max-bet breach, an excluded game, or an expiry window they didn't notice.

• Wagering requirement: The total amount you must bet before bonus funds turn into normal, cashable balance.
• Maximum bet: The highest stake allowed per spin or hand while you're working through a bonus; here it's typically around A$7.50.
• Minimum deposit: The smallest qualifying payment needed to trigger a deposit-based bonus, often about A$20 or the equivalent in BTC shown in the cashier.
• Bonus validity: How long you've got to use the bonus and finish the turnover, usually somewhere in the 7 - 14 day range.
• Game eligibility: Which games move the turnover meter - pokies usually count 100%, table games and poker far less.

It's easy to forget mid-session, but the house edge is always there - the bonus just changes how long your bankroll lasts, not the basic maths underneath. The promo can extend your play time, but it doesn't turn gambling into a money plan. Once you're dipping into rent, bills or grocery money, it's past the point of fun. That's when you should step away and get help if you need it.

If you want a proper checklist of limit-setting tools and support options, the site's responsible gaming section is the right place to start.

Wagering Requirements in Depth

Wagering rules are basically the price tag on a casino bonus. In plain English: they control how much you need to spin through before you can actually withdraw anything, and they tie into game contribution rates and RTP. The higher the turnover number and the slower your chosen games contribute, the tougher it is to turn that bonus balance into money you can cash out.

At 28 Mars Casino, the common setup is 40x on bonus funds and 45x on free-spin winnings. To put that into real numbers, a A$100 bonus means about A$4,000 in required spins or hands. If you're playing on a 96% RTP slot, the house edge is 4%, which means over that A$4,000 in turnover you're looking at roughly A$160 in expected loss - more than the bonus itself, at least on paper.

You absolutely can string together a cracking session off a bonus - it happens, and everyone has a story about that one feature that went off. The catch is that over the long haul the house edge grinds away, so I'd still file promos under "entertainment" rather than "side income".

• Work out the required turnover by multiplying your bonus size by the relevant multiple (for example, A$50 x 40 = A$2,000).
• Keep an eye on slot RTP: some SoftSwiss setups run at about 94% instead of the full 96% you might see advertised elsewhere.
• Roughly speaking, the higher the house edge and the bigger the turnover, the more of your bonus is likely to disappear into spins over time.

If we run rough numbers on that A$100 bonus at 40x on a 96% game, the house edge will usually eat more than the bonus over the full turnover. That's why I treat promos as a way to play longer and mix up a few games, not as a way to beat the system.

Important Restrictions & Excluded Games

A lot of the frustration people feel with any online casino comes from restrictions they didn't realise were sitting in the background. 28 Mars Casino follows the usual pattern: certain bet sizes, game types and sometimes maximum cashouts get tightened up when bonus funds are involved. I've been in that spot where you're buzzing from a decent hit and then a buried clause chops it right back, and it's a horrible, deflating feeling. If you know the rules upfront, you're far less likely to get stung at the worst possible time - right when you're trying to withdraw.

• Max bet while wagering: A bet cap of about A$7.50 per spin or hand is the standard setting.
• Max cashout from no-deposit spins: Often around A$50, with any excess removed when you cash out.
• Excluded games: Progressive jackpots, some high-RTP pokies and most ultra-low-edge table games are usually off-limits.
• Payment method limits: Certain promos may be unavailable for crypto or particular e-wallets, so read the promo card carefully.
• Country and household rules: Some bonuses exclude players from particular jurisdictions and limit one account per household or IP.

• Do read the bonus page and the full terms & conditions before you hit "accept".
• Do stay under the listed max-bet limit and steer clear of games the rules single out as excluded.
• Don't try Martingale or other betting systems on roulette or blackjack to "cheat" the turnover - the casino has seen them all.
• Don't open second accounts or lend yours out to mates; that's a fast track to a closed account.

If you break bonus terms, the usual chain of events is pretty similar across the industry: the bonus is removed, winnings can be forfeited, and in serious cases the account can be closed. That's not unique to this operator - you'll see the same thing at most Curacao-licensed sites and even at big-name European brands. Your best protection is disciplined play and a quick screenshot of the promo card so you can point back to it if there's a disagreement.

How to Cancel or Forfeit a Bonus

Sometimes you start a bonus and then, halfway through, you realise the turnover is heavier than you want to put up with, or you'd prefer to withdraw what's left of your real-money balance instead of grinding on. In those situations, cancelling (forfeiting) the bonus can be the sensible move, especially if pushing on would blow past what you planned to spend for fun.

1. Log in and open your profile or wallet section.
2. Head to the "Bonuses" or "Active Bonuses" tab.
3. Find the bonus that's currently running and look for a "Cancel", "Forfeit" or little bin icon.
4. Confirm that you understand any remaining bonus funds and winnings from them will disappear.
5. If there's no self-service option, ping support via live chat or the help form and ask them to cancel it manually.
6. After the bonus is removed, check your real-money balance and then decide whether to withdraw or keep playing without any promo attached.

• In most cases you keep your original deposit if you cancel before you bust the balance completely.
• Winnings generated from bonus funds usually vanish when you cancel, because they're tied to completing the turnover.
• Some casinos bring in a short "cooling-off" period after you cancel before you can grab another promo, so check the current rules on site.

Cancelling can make a lot of sense if you jag a solid win early but still have most of the turnover ahead of you, or if you can see that finishing the requirements would chew through your bankroll (and your patience). Always weigh the entertainment value against the risk of losing both the bonus and your time if the turnover target is unrealistic for what you're comfortable spending.

How to Use Bonuses Effectively: Pro Tips

Bonuses at 28 Mars can absolutely stretch a bankroll. I've had nights where a A$50 top-up plus a reload kept me spinning a Pragmatic pokie and ducking into a low-stake blackjack table every now and then for a couple of hours instead of half an hour, and it's hard not to be a bit chuffed when a small buy-in lasts that long. The catch is still the turnover and the house edge, so they rarely turn into positive-EV plays. The smart approach is about squeezing extra entertainment out of them while keeping the risk at a level you're okay with.

For Beginners

• Prioritise low turnover over massive numbers: A modest 50% bonus with 25 - 30x playthrough is often easier in real life than a 100% match at 40x that you never finish.
• Use free spins as a sampler: No-deposit offers like the "28 free spins" style deals are handy for testing a game's feel and volatility without extra cash on the line.
• Check RTP in the game info: Click the "?" icon in Pragmatic Play or Play'n GO titles to confirm RTP, as some versions run a lower setting around 94% instead of the higher one you might expect.
• Keep your bets simple: While you're clearing a bonus, stick to straightforward pokies instead of complex table games or poker strategies. They move the turnover faster and more predictably.
• Manage your bankroll: Decide ahead of time how many A$20 or A$50 bullets you're comfortable losing and don't chase losses just because a promo is active.

For Experienced Players

• Think in EV terms: Even rough mental maths helps - if the turnover and house edge together eat more than the bonus, the promo is just paid entertainment, not an edge.
• Target higher-RTP, medium-volatility pokies: These games sit in a sweet spot where you get reasonably frequent hits with enough punch to give you a chance of reaching the turnover.
• Avoid bonus-buy features: Many promos ban bonus-buy slots outright, and they can shred your balance with extreme variance while barely moving the meter.
• Time your reloads: Stick to promotions that line up with when you'd play anyway instead of forcing extra deposits for every campaign that pops up.
• Look after your account: Use strong passwords, stick to secure connections, and get familiar with how your data is handled by reading the site's privacy policy.

Above all, casino games aren't a way to earn money, even when there's a promo attached. They're entertainment with a built-in house edge, and the cost can snowball if you're not careful. If you feel your gambling is getting away from you, use the site's limit tools and self-exclusion options described under responsible gaming, and consider contacting Gambling Help Online (1800 858 858, gamblinghelponline.org.au).

Country-Specific Bonuses and Regional Nuances

Bonuses at 28 Mars Casino can look a bit different depending on where your account is registered, the currency you're using and sometimes even your favourite payment method. Because this is the AU mirror, I've focused on how the promos work in Australian dollars and crypto for local players.

For Aussies, you'll mostly see offers in A$ with a crypto option beside them in the cashier. The underlying structures - things like 40x turnover or free-spin caps - tend to be similar to what overseas players see, but the exact limits and payment options can change. If you're travelling or using a different device and the lobby looks a bit different, always double-check the limits, currency and payment options shown in your own cashier rather than relying on old screenshots.

• Currency-specific amounts: The same promo might be shown as A$100 for local accounts but appear as €100 or CA$150 for overseas players.
• Local payment perks: In some regions, extra spins or small cashback boosts might be tied to popular local payment methods.
• Geo-blocked promos: Certain campaigns only appear in specific markets and won't show at all if your account is registered elsewhere.
• VPN use: Logging in from a different IP with a VPN to chase foreign bonuses usually breaks the rules and can void your promos or even your account.

For Australians who prefer crypto, digital coins can be one of the more flexible ways to deposit, with minimums often sitting around the A$20 mark once you convert them at the current rate. The key is to double-check that the code or promo you're using actually supports crypto deposits, because some "28 free spins" affiliate offers are linked to card or voucher payments only. If you're not sure, it's worth asking support before sending funds, especially since crypto transfers are harder to reverse than card payments.

FAQ

• Can I combine multiple bonuses at 28 Mars Casino?

  

  Normally you can have only one active bonus at a time. Trying to stack a welcome offer with a reload or cashback goes against the rules and can wipe all promotional balances. Finish, cancel or fully settle your current bonus before you claim another one, and always check the bonus section in your account to see what's currently active.

• What should I do if my bonus doesn't show up?

  

  First, refresh the page and check your wallet to make sure the bonus isn't already sitting in a separate balance. If it's not there, confirm that you:

  • Entered the promo code correctly (no extra spaces or typos).
  • Deposited at least the minimum amount with an eligible payment method.
  • Didn't already claim that offer earlier on the same account.

  If everything looks right and it still hasn't landed, reach out through the casino's official support options - usually live chat or the contact us form - before you keep playing. Support can check the logs and either credit the bonus manually or explain why it wasn't applied.

• Can I withdraw before finishing the wagering requirement?

  

  You can usually request a withdrawal of your real-money balance at any time, but doing it while a bonus is still active often cancels the promo and any bonus-generated winnings. If you're thinking about cashing out early, check the bonus tab in your account first. In some cases it makes sense to explicitly cancel the bonus and then withdraw whatever real-money balance is left so you know exactly what you're giving up.

• Are 28 Mars Casino bonuses safe for casual players?

  

  Bonuses themselves are just rule sets attached to your account; the risk comes from how you use them. For casual players, they can be a fun way to get a bit more playtime out of the same budget, as long as you:

  • Only gamble with money you can afford to lose.
  • Set a firm deposit limit and stick to it.
  • Read the promo card so you know about max bets and time limits.

  If you ever feel like you're chasing losses or playing just to unlock a bonus, it's a good sign to take a break or use the tools under responsible gaming to rein things in.

This article is an independent overview of bonuses at 28 Mars Casino on 28marsbet-au.com. It's not an official casino page. Details such as promo names, amounts and rules can change, so always check the latest information on the site itself. Last updated: February 2026.