The Super Diamond Mine slot is a 2011 RealTime Gaming game with a diamond-mining theme, five reels and nine lines that pay in both directions, plus a bonus game. Its RTP isn't published, and the 250,000x max win in one catalog looks doubtful. Here's what can be confirmed and how to budget around the gaps.
Super Diamond Mine is a 5x3 RTG slot from 2011 with nine pays-both-ways lines and a bonus game.
No RTP or volatility rating is published, so its exact house edge is unknown.
A 250,000x max win appears only in a catalog's attributes table; treat it as unconfirmed.
A lobby list shows a game called Diamond Mine, which may or may not be the same title.
Partner casinos are offshore and not licensed by any US state; check your state's law first.
Developer
RealTime Gaming (also sold as SpinLogic Gaming)
RTP
Not published
Volatility
Not published
Layout
5 reels x 3 rows
Paylines
9, paying both ways (catalog label)
Max win
250,000x bet in one catalog table (unconfirmed)
Released
2011
Super Diamond Mine slot overview: what's confirmed
This is an early-2010s RealTime Gaming title. A third-party slot catalog dates it to 2011 and lists a 5x3 layout, nine lines that pay both ways and a bonus game. The theme is diamond mining.
That is close to the full list of confirmed facts. RTP, volatility, the bonus trigger and the bonus prize structure are all unpublished in the sources available, and RTG's own site couldn't be checked. The table marks which specs are solid and which are gaps.
How the Super Diamond Mine slot pays: both-ways lines and a bonus game
Nine lines pay left to right and right to left, so a combination can begin on either outer reel. That gives each line two chances to pay without raising the stake. The paytable already accounts for this, so it doesn't change the house edge.
The bonus game is a separate feature with its own prizes. How it's triggered and how its awards are set aren't described in any source available. No wild, scatter or free-spins round is listed. The paytable inside the game will show the real rules.
Is the Super Diamond Mine 250,000x max win real?
The 250,000x figure comes from a catalog's attributes table; its main summary table lists no max win at all. That's a large multiplier for a nine-line 2011 game with only a bonus game listed, and RTG hasn't confirmed it. Treat it with caution.
What 250,000x would mean at three stakes (unconfirmed)
Stake
250,000x equals
Practical limit
$0.25
$62,500
Casino withdrawal caps
$1
$250,000
Casino withdrawal caps
$5
$1,250,000
Casino withdrawal caps
Even if the figure were right, offshore casinos set their own withdrawal limits and bonus play may add a max cashout. Read our page on weekly withdrawal limits before assuming any large sum could be paid at once.
Super Diamond Mine RTP: not published
No RTP figure appears for Super Diamond Mine in any source available, so we won't estimate one. RTP is what drives your long-run cost: each percentage point of house edge costs $1 per $100 wagered. Without it, you can still plan by spin count and by the cost-per-point formula below.
If your casino shows an RTP in the game's info or help screen, use that. Our how slot RTP works explainer shows where to look and how to read it.
Planning a $50 real money session on Super Diamond Mine
Without a published RTP, the useful numbers are how many spins $50 buys and what each point of house edge costs.
A $50 budget on Super Diamond Mine
Stake per spin
Spins if nothing wins
Cost per 1% house edge on $50 staked
Cost per 1% house edge on $500 staked
$0.25
200
$0.50
$5
$1
50
$0.50
$5
$5
10
$0.50
$5
To use the table, multiply the cost-per-point by the house edge once you find the RTP. For example, if a casino displayed a 4% edge, $500 of play would cost $20 on average. That 4% is arithmetic only, not this game's figure. Volatility is unknown too, so expect real sessions to swing. See bankroll management for stake sizing.
Diamond Mine or Super Diamond Mine? Check the title
A lobby game list reported for RTG casinos includes a title called simply “Diamond Mine”. It isn't clear whether that's Super Diamond Mine under a short name or a different game. When you search a lobby, open the game's info screen and check the full title, grid and line count against the specs on this page.
Playing Super Diamond Mine in the USA: the legal position
RTG games are mainly found at offshore casinos, and none of those is licensed by a US state. Seven states license real-money online casinos: New Jersey, Pennsylvania, Michigan, West Virginia, Delaware, Connecticut and Rhode Island. The partners on this page aren't licensed in any of them.
State law decides whether online casino play is allowed where you live. Read offshore vs state licensed casinos and check your state on the states hub. Offshore play comes without a state regulator to hear complaints or state protection of balances.
Getting started with Super Diamond Mine
Check your state's law on online casinos.
Search the casino lobby and confirm the full title is Super Diamond Mine.
Look for an RTP figure in the game's help screen; none is published elsewhere.
Set a deposit limit and a session budget, then pick a stake from the $50 table.
Read the bonus game rules in the paytable.
Stop when the budget is spent; results don't build toward a payout.
Super Diamond Mine vs other RTG pays-both-ways slots
Super Diamond Mine is one of a small group of RTG games that pay in both directions. Comparing it with its siblings shows how little is published for this one.
RTG slots that pay both ways (third-party listings)
Shopping Spree is the only one of the three with a published RTP, which lets you price play at $4.56 per $100 staked. Vegas Lux swaps lines for 720 ways and is rated medium volatility. Both-ways pays spread small wins around without changing the house edge, as our paylines glossary entry explains.
Slots like Super Diamond Mine: RTG gem and diamond games
RTG has a deep shelf of gem-themed slots. Some publish an RTP, which makes costs easier to compare.
Where to play Super Diamond Mine with an offer via our links
These partners are reported to run RTG software. They are offshore casinos, not licensed or regulated by any US state; check your state's law before you join. You must be 21+ (18+ where allowed), and terms apply to every offer.
Silver Oak Casino: $2,500 Welcome Bonus + 50 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Silver Oak's own site advertises a different package, $10,000 as 100% on each of the first ten deposits (codes SILVEROAK1 to SILVEROAK10), with no max withdrawal. Its offer page says 30x playthrough but its terms (opens in a new tab) say 40x on slots, a conflict to check before depositing; deposits start at $30. The terms exclude progressives, which shouldn't affect this game on current listings. Its terms state an Anjouan license held by Primrose Media Limited, though one third-party review lists it as unlicensed or Costa Rica-based.
Planet 7 Casino: $2,750 Welcome Bonus + 45 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Third-party reviews report 30x (bonus + deposit) on slots and a $1,000 max cashout for code WELCOME200, with minimum deposits of $30 by card or $5 by Bitcoin Lightning.
Royal Ace Casino: $2,500 Welcome Bonus + 35 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Third-party reviews disagree: one lists 200% up to $4,000 with 30x (bonus + deposit) and a max cashout of 10x the deposit; another lists 250% up to $2,500 plus 35 spins.
Published terms (casino terms): Silver Oak advertises a 100% match on each of its first ten deposits (up to $10,000 in total) with codes SILVEROAK1–10. Eligible games: Slots, keno, scratch cards (table games at 60x; many games excluded).
Who runs it: Primrose Media Limited, licensed in Anjouan (its terms). Regulator notes: Named in a Michigan Gaming Control Board cease-and-desist release, April 9, 2025.
21+ (18+ where allowed). New players. Min deposit $30. Wagering 30x on the offer page; 40x in the terms. Max cashout: None stated. Withdrawal cap From $2,500 / week. Terms source: casino terms. Terms apply. Offer checked October 28, 2026.
Planet 7 Casino#5 on our listRealTime Gaming slots
Published terms (reported): Third-party reviews report a 200% match with code WELCOME200; the casino site could not be checked directly. Eligible games: Slots (reported).
Who runs it: License not shown; third parties report Costa Rica or none. Regulator notes: Named in a Michigan Gaming Control Board cease-and-desist release, April 9, 2025.
21+ (18+ where allowed). New players. Min deposit $30 (reported). Wagering 30x deposit + bonus (reported). Max cashout: $1,000 (reported). Withdrawal cap $2,500 / week (reported). Terms source: reported. Terms apply. Offer checked October 28, 2026.
Royal Ace Casino#6 on our listSlots and specialty games
Published terms (reported): Third-party reviews disagree on the package (200% up to $4,000, or 250% up to $2,500 + 35 spins); the casino site could not be checked directly. Eligible games: Slots and specialty games (reported).
Who runs it: License not shown; third parties report Costa Rica or none. Regulator notes: Third parties report it does not accept Ohio players.
21+ (18+ where allowed). New players. Min deposit $30 (reported). Wagering 30x deposit + bonus on slots (reported). Max cashout: 10x deposit (reported). Withdrawal cap $2,500 / week (reported). Terms source: reported. Terms apply. Offer checked October 28, 2026.
These casinos are offshore operators. They are not licensed or regulated by any US state, and state consumer protections do not apply. Check the law in your state before you play. Terms marked “reported” come from third-party reviews; the terms shown at sign-up apply.
21+ (18+ where allowed). Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: responsible gambling tools and free help. Gambling problem? Call or text 1-800-MY-RESET (1-800-697-3738).
Frequently asked questions
What is the Super Diamond Mine RTP?
No RTP is published for Super Diamond Mine in any source available, and RTG's site couldn't be checked. Be wary of sites that quote an exact figure without a source. Without RTP, you can't calculate the true cost, but each percentage point of house edge costs $1 per $100 wagered. Check the game's help screen at your casino. Our house edge guide shows the formula.
What is the max win on Super Diamond Mine?
One catalog lists 250,000x the bet, but only in its attributes table, and its summary table shows no figure. For a nine-line 2011 game with only a bonus game listed, that's unusually high, so treat it as unconfirmed. Offshore withdrawal caps would limit any large payout in practice. See cashing out big wins for how casinos handle large sums.
How does the Super Diamond Mine bonus game work?
The listing confirms there is a bonus game, but no source available explains how it's triggered or how prizes are decided. That information is in the game's own paytable. Bonus games usually pay on top of normal line wins and are part of the game's overall RTP, not an extra. Our bonus round glossary entry explains the general idea.
Does Super Diamond Mine pay both ways?
Yes, the catalog lists nine lines that pay both ways. A winning combination can start from either the leftmost or rightmost reel. That increases how many ways each line can pay without changing your stake, but the paytable is set so the house edge stays the same. See our paylines glossary entry for more on line systems.
Is Super Diamond Mine the same as Diamond Mine?
Not necessarily. A reported lobby list includes a game titled Diamond Mine, and it's unclear whether that's a short name for Super Diamond Mine or a separate title. Open the game's info screen and compare the grid, line count and features with the specs on this page. Our RTG software guide explains how RTG names and groups its games.
Can I play Super Diamond Mine with a bonus?
Usually, as partner bonuses are aimed at slots, but always check the eligible-games list. Silver Oak's terms exclude progressives, which shouldn't affect this non-progressive game on current listings. Wagering requirements still apply, and some offers cap what you can cash out. Read how to claim a casino bonus for a step-by-step walkthrough.
Is Super Diamond Mine legal to play in the US?
That depends on your state's law, not the game. Seven states license real-money online casinos, and offshore RTG casinos aren't licensed in any of them. Federal UIGEA targets payment processing rather than the player's wager, but state rules differ. Start with which states allow online casinos before you sign up.
Is Super Diamond Mine volatile?
Its volatility isn't published, so there's no reliable rating. Pays-both-ways lines tend to spread small wins out, but if the bonus game holds much of the return, sessions can still swing widely. Budget as though results will vary a lot, and use lower stakes to stretch play. Our slot volatility explained guide covers how to plan for swings.
Can I play Super Diamond Mine online in Nevada?
No, Nevada licenses online poker but not real-money online casino games, so there is no legal state option for Super Diamond Mine. Under NRS 463.160 and 463.750, gaming and interactive gaming both need a Nevada license, and SB 256, in force since October 1, 2025, raised penalties for unlicensed operators. A Gaming Control Board notice from January 16, 2026 warns that a lack of enforcement doesn't make online gaming legal. Players in Las Vegas, Henderson and North Las Vegas can see the rules on our Nevada online casinos page.
Is there a Super Diamond Mine app?
No dedicated app is listed at the partners shown here, and offshore real-money casinos generally aren't in the Apple or Google stores. Silver Oak's own mobile page says its casino runs in the browser on iPhone, Android and tablets, with a downloadable client for Windows PCs. Third-party reviews describe Planet 7 as browser-based with no app, and AskGamblers lists Royal Ace as offering instant play, mobile and download versions. Open the casino in your phone's browser and search the lobby for the full title. Our answer to is there a casino app explains why.
Can I play Super Diamond Mine for free?
Only if your casino offers a practice mode for it, which isn't confirmed for this title at any partner. Some RTG casinos let you try games with play credits that can't be withdrawn. For Super Diamond Mine, a free session is a cheap way to see the bonus game once and read the both-ways line patterns, since no source describes the bonus rules. Demo results don't predict real-money play, and the house edge applies once you switch. Our demo mode guide explains what practice play can and can't tell you.
How do I cash out Super Diamond Mine winnings at Silver Oak?
Verify your account first, then choose one of Silver Oak's published payout methods. Its terms require government photo ID, the front and back of cards used in the last three months, a selfie with your ID and a utility bill from the last three months, and block withdrawals until that's done. Bitcoin pays $50 to $2,500 per request with fees up to $40, bank wire and check $100 to $2,500, and Coindraw from $20 at a 5% fee. Review and payment each take 7-10 business days. Our Silver Oak verification page lists the documents.
Is Super Diamond Mine like Diamond Dozen?
They share a gem theme and an early-2010s RTG release, but Diamond Dozen is far better documented. It came out in 2010 and lists a 97.5% RTP, low volatility, 20 betways, free spins and a progressive jackpot, with a 15,000x top win. Super Diamond Mine, from 2011, has nine both-ways lines, a bonus game, no published RTP and a doubtful 250,000x figure. Diamond Dozen's progressive may be excluded from bonus play, which Super Diamond Mine avoids. Our Diamond Dozen review has its listed specs.
Is Royal Ace legit for playing Super Diamond Mine?
Royal Ace is a long-running offshore casino, launched in 2009 according to third-party reviews, but its record is mixed. LCB and Casino Guru list it as having no license, AskGamblers reports a Costa Rica license with no number, and reviewers name different operators, including Ace Revenue Group. LCB flags slow payments and poor support, and AskGamblers says players may see slower payouts but will be paid. It doesn't appear in the three Michigan releases that named other partners, and it's reported to refuse Ohio players. Read our Royal Ace legit check first.
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