Maximum Exposure Control
Maximum exposure is the biggest amount you could ever have to pay a player from a single bet, spin, or round. It is your worst-case scenario, one game at a time.
This guide shows you which exposure limits we support, how the limit is worked out for slots, crash games, and live table games, and how to ask us to change yours. Everything you need is on this page, and each calculation comes with a worked example.
The Core Idea: The Stake Comes Back Too
Exposure is the total amount credited to the player in the worst case, their winnings and their own stake returning to them. Exposure limits are configured per game, per Brand and what is possible depends on the Supplier.
Here is an example of the core idea:
A player stakes €5,000 on a bet that pays 1:1 (double or nothing). They win.
Their balance goes up by:
€5,000 their own stake, returned
€5,000 their winnings
= €10,000 total
The exposure is €10,000, not €5,000.
That last line is the most common mistake in this whole topic. “1:1” describes the winnings only. Exposure is the entire amount that lands in the player's balance, Hub88 doesn't subtract the stake the player already paid you because the question exposure answers is “what is the largest single payout we must be able to fund?”.
The one rule that changes between game types
The industry quotes its numbers two different ways, and this is what trips people up. There are only two cases:
Slots and crash games
The max win multiplier already includes the stake
Max bet × multiplier
Live table games
The odds (1:1, 8:1, 35:1) are the winnings only
Max bet × (odds + 1)
Why the + 1? Because you add the stake back on top of the winnings. A €100 bet at 8:1 pays €800 in winnings, plus the €100 stake, €900 in total. That is €100 × (8 + 1).
Exposure Tiers
Before working out any bet sizes, it helps to know which ceilings are actually on the table. You cannot pick any figure you like. Exposure is agreed in tiers:
€100,000
Assessed per Supplier and per game
€200,000
Assessed per Supplier and per game
€350,000
Standard. Widely supported across the catalogue
€500,000
Assessed per Supplier and per game
€1,000,000
Assessed per Supplier and per game
Every other tier exposure tier is assessed case by case. Not all Suppliers support figures below the standard, and the higher figures depend on the individual title, a Supplier who allows €200,000 on one game may not allow it on another. Always confirm feasibility for the specific game before you configure it or advertise a limit on a Brand.
Some Suppliers also support figures in between our tiers. When we come back to you with what is available, we will tell you if that is the case.
These five figures are the column headings of the slot matrix in the next section, so pick your target ceiling here first, then read the bet size off there.
Slot Games
How the limit works?
Every slot has a max win multiplier, the biggest possible payout, expressed as a multiple of the stake. A “10,000x slot” can, at absolute best, pay 10,000 times whatever the player staked.
So a €1 spin on a 10,000x slot has a worst case of €10,000. A €10 spin on the same slot has a worst case of €100,000.
Maximum exposure = max bet × max win multiplier
What can and cannot be changed?
The multiplier is locked. It is built into the Supplier's certified maths model as the game's payout logic, tested and signed off by an accredited testing laboratory before the game can go live. Changing it would mean re-certifying the game, so nobody can adjust it, including Hub88.
Max bet is the only lever, and it is the one this guide helps you work out.
The slot matrix
Find your game's multiplier down the left, and your target exposure ceiling along the top. Where they meet is the max bet.
2,000x
€50
€100
€175
€250
€500
5,000x
€20
€40
€70
€100
€200
10,000x
€10
€20
€35
€50
€100
20,000x
€5
€10
€17
€25
€50
50,000x
€2
€4
€7
€10
€20
100,000x
€1
€2
€3
€5
€10
As an example: You are enabling a slot with a 10,000x max win, and your target exposure ceiling is €350,000.
Find the 10,000x row.
Move across to the €350,000 column.
The cell says €35. That is the max bet.
Check it: €35 × 10,000 = €350,000.
Raise the target to €500,000 and the same row gives €50 instead.
For a multiplier that is not listed, divide the ceiling by the multiplier and round down. A 15,000x slot at €350,000: 350,000 ÷ 15,000 = €23.33, so €23. Always round down, rounding up puts you over your own ceiling.
The same rule explains why two cells in the matrix sit slightly under their ceiling: 20,000x at €350,000 works out to €17.50, and 100,000x to €3.50, so both are rounded down to €17 and €3. Every other cell lands exactly on its ceiling.
On bet sizes: Bet limits are configured in whole currency units, and some Suppliers only accept larger steps, for example multiples of €5 or €10. Round down to the nearest step you know is available, and treat any figure you calculate as a target: your Account Manager will confirm what is actually settable for a specific title.
Reading the matrix correctly
The multiplier is what makes a bet size risky, not the bet size on its own. A €50 max bet appears twice in the table: on a 2,000x game it means €100,000 of exposure, on a 20,000x game it means €1,000,000. Ten times the risk, same bet.
So always start from the game's multiplier, and never carry a max bet across from one game to another because it felt about right.
Bonus buys and promotions
A bonus buy lets a player pay an up-front price to trigger a slot's bonus round immediately instead of waiting for it to land. Bonus buys often have their own multipliers, but they sit under the game's general exposure setting, there is nothing extra to calculate or request.
Crash Games
How the limit works?
In a crash game, the multiplier climbs continuously and a player can cash out at any point before the crash. There's no fixed "max win" point to multiply against the bet size, the way there is in a slot.
Instead, exposure is controlled by a payout cap: the most that can be paid out on a single round, no matter how high the multiplier climbs. The max bet is held fixed and modest (usually €10), and the payout cap is adjusted by the Supplier.
Exposure = Max Bet (fixed) x Payout Cap
How it is set up in practice?
Crash games are configured the other way round from slots. The max bet is held small and fixed, often €10, and the payout cap is the lever adjusted with the Supplier.
Example: Payout cap set to 100,000 EUR. A player bets 100 EUR and cashes out at 5000x. That works out to 500,000 EUR, but since the cap is 100,000 EUR, that's all they're paid.
Example targets at a €10 max bet:
10,000x cap = €100,000 exposure
35,000x cap = €350,000 exposure
50,000x cap = €500,000 exposure
100,000x cap = €1,000,000 exposure
€350,000 is the standard limit, any other figure needs a per-Supplier check (see Exposure tiers).
If a Supplier uses a different max bet, the same math applies: divide your target limit by the max bet to get the cap. Your Account Manager confirms the max bet for a specific title.
What to ask for. Give us the exposure figure you want, not the cap. We translate it and agree it with the Supplier. See Requesting a change for what to include.
Live Table Games
A slot is one game with one multiplier. A live roulette table is dozens of different bets running at once, each paying different odds.
On a single table, a player can back red (which pays 1:1) or a single number, which pays 35:1. Those are very different risks. A stake that felt comfortable on red would cost you eighteen times as much on a single number, because red pays back twice the stake at worst and a single number pays back thirty-six times it.
So on live tables you set a max bet per bet type, not one for the table.
The pattern to remember
Main bets: red/black, Baccarat Banker or Player, a basic blackjack hand. Short odds, low volatility, meaning wins are small and frequent. These can carry high max bets.
Side and proposition bets: a single number, Baccarat Tie, Perfect Pairs. Long odds, high volatility, meaning wins are rare but large. These need much lower max bets to reach the same worst case.
“Side bet” and “proposition bet” mean the same thing: an optional extra bet placed alongside the main game.
The bet type table
The rows below are all sized to land at roughly €10,000, to show how differently each bet type has to be capped to reach the same worst case. This is an illustration of relative sizing, not a limit, multiply every max bet by the same number and every exposure figure scales with it. For a €20,000 band, double the max bets.
Roulette even-money / Blackjack basic hand
Red/black, odd/even, or a standard hand of blackjack
1:1
Low
€5,000
€10,000
Baccarat Banker/Player
The two main bets on a Baccarat table
~0.95:1
Low
~€5,000
~€9,750
Roulette Dozens/Columns
A block of 12 numbers
2:1
Medium
~€3,300
~€9,900
Baccarat Tie
Side bet that Banker and Player draw
8:1
High
~€1,100
~€9,900
Roulette straight-up
A single number
35:1
High
~€280
~€10,080
Blackjack side bets (Perfect Pairs, etc.)
Optional extras on a blackjack hand
25:1–30:1
High
~€330
~€8,580–€10,230
How to read a row. Take roulette straight-up: odds of 35:1, so €280 × (35 + 1) = €10,080. That is why a €280 cap on a single number is about as risky as a €5,000 cap on red, in the worst case they cost you roughly the same.
To size your own figure. Divide your target by (odds + 1), then round down to a bet size you can actually set. A €20,000 target on Baccarat Tie at 8:1: 20,000 ÷ 9 = €2,222.22, which rounds down to €2,222 — or to €2,200 if the table only accepts steps of €100. Both sit under €20,000, which is what matters.
Why the figures are approximate? The max bets here are rounded to tidy numbers to keep the table readable, so the totals land near €10,000 rather than exactly on it — two land just above. When you are sizing against a real ceiling rather than this illustration, always round the bet down so you stay underneath. The blackjack side bets row covers a range of odds, so it shows a range of exposures.
Why Baccarat is ~0.95:1? A winning Banker bet normally carries a small commission to the house, the house keeps a percentage of the win, so it pays slightly less than even money.
Privé and VIP tables
Privé and VIP tables are high-limit tables for a small number of high-value players, and they run to a different scale, main bets of €50,000–€100,000. They sit outside the standard tiers, are never enabled by default, and need a separate commercial agreement with the Supplier, arranged the same way as any other request below.
Requesting a Change
Send your Account Manager:
Which Operator? Especially, if your account covers more than one.
Which Suppliers? Name them, or say “all”. This drives the timeline more than anything else.
Which games? Name the specific titles, if the request is not for a Supplier's whole catalogue. Feasibility is assessed per game, so naming them upfront avoids a round trip.
Your target exposure figure. Add for example, “€500,000”. Send the exposure figure, not a max bet or a payout cap. We work those out with the Supplier.
What happens next
We request the closest supported setting at or below your target. We never go above it.
Example. You ask for €400,000. That is not one of our tiers, and the nearest supported options are €350,000 and €500,000. We request €350,000 which the nearest option that does not exceed what you asked for.
How long it takes
One or two Suppliers
Up to a week
All available Suppliers
A month, minimum
Currency Handling
Every figure in this guide is in EUR, our reference currency.
For setting bet limits, an approximate exchange rate is fixed when the game is configured, not the live market rate. It is periodically reviewed, but not day to day. This is deliberate: if limits tracked the live market, your max bets would drift every time currencies moved, and a limit you signed off on Monday would be a different number by Friday.
In practice, EUR, USD, and CAD are commonly treated as a simple 1:1:1 rate for bet configuration. A €10 max bet is set as $10 and C$10 the same number across all three, rather than the true market conversion. Other currency pairs work the same approximate way.
Because the limit is the same number in each currency, your worst case in a local currency is that many local units.
A game configured to €350,000 of exposure carries C$350,000 of exposure on a CAD table, which is not the same real-world value. If you operate across currencies, size your ceiling against the currency where it matters most to you.
This approximate rate applies only to configuring bet limits. Live transactions are converted at real rates and stored with the rate used. See Currency Conversion and Financial Reconciliation.
The Three Game Types Side by Side
Where the payout ceiling comes from
The certified maths model, fixed
No built-in ceiling — the Supplier applies a payout cap
The game's fixed odds
What we adjust for you
Max bet
Payout cap (max bet stays small and fixed)
Max bet, per bet type
The formula
Bet × multiplier
Bet × cap
Bet × (odds + 1)
How many limits per game
One
One
One per bet type
Frequently Asked Questions
Can exposure limits be adjusted on live table games? Not on a per-table or per-bet basis — live tables aren't configurable the way slots and crash games are, and in practice this isn't needed. Live games have higher RTP and lower volatility than slots, so even a near-impossible worst case (a player seated at several spots and winning on every one) stays well under our lowest exposure tier. The real exposure sits with VIP/Privé high-stake tables. Those carry meaningfully more risk and can be enabled or removed for a Brand if you want to manage it. Talk to your Account Manager about which VIP/Privé tables should be live.
Can we raise a slot's max win multiplier instead of lowering the max bet? No. The multiplier is locked inside the Supplier's certified maths model and cannot change without re-certifying the game.
Does a progressive jackpot count towards a game's exposure? No. Jackpots, prize drops, and tournaments are funded and calculated by the Supplier, separately from the base game. Bonus buys, by contrast, are covered by the game's exposure setting.
What happens if we ask for a figure that is not offered? We request the nearest supported setting at or below your target. Never above.
Will our limits move when exchange rates move? No. Bet configuration uses an approximate rate fixed at setup and reviewed periodically, so your limits stay put.
Can we set a different limit on each of our Brands? Limits are configured per game, per Brand, so yes — tell your Account Manager which Brands are in scope when you raise the request.
Your Responsibilities
Reviewing and confirming maximum exposure for all content enabled on your Brand or Brands, including any bonus buy, jackpot, or VIP/Privé configuration: is the Operator's responsibility.
This guide is a general reference. It does not replace Supplier-provided game documentation, certification paperwork, or the specific terms of your agreement, all of which take precedence in the event of any discrepancy.
Last updated
Was this helpful?