Mobile / Casino
From RTP and volatility on the slots floor to rollover conditions on your account wallet, this glossary puts plain-language definitions next to every term you encounter across the 228ok lobby, payment screens and support pages — so nothing slows you down when it matters.
Seeing an unfamiliar term mid-session pulls your attention away from the decision you were about to make.
Terms cluster around four areas of the platform. Knowing which family a term belongs to tells you exactly which screen to look at when the definition becomes relevant to a live decision you are making.
RTP, volatility, hit frequency and payline count appear on the game detail card or inside the paytable screen. CQ9 and Joker titles show this data where the provider has published it; if no figure appears, the provider has not released it for that title.
Asian handicap, over/under, decimal odds and match handicap labels are on the sportsbook board. Cricket markets — including BPL and international fixtures — use the same decimal format. The odds board refreshes when the market moves, so the figure you see is current to that moment.
Deposit, withdrawal, minimum transaction, e-wallet and processing status are the terms you see in the cashier and transaction history pages. bKash, Upay and Bank Transfer each have their own entry fields and confirmation steps shown directly in the cashier screen.
Rollover, turnover requirement, qualifying game and expiry date are the four terms attached to any wallet credit or information. These appear in the information detail view inside your signed-in account area; the specific figures and qualifying categories are shown there, not here.
These six terms appear on game cards, paytables and lobby filters. Each definition below is what the term means in plain language — not advice on how to use it.
RTP stands for Return to Player. It is a percentage showing how much of total wagers a game pays back over a very large number of rounds.
House edge is the mathematical advantage a game holds over the player, expressed as a percentage of each wager. It is the complement of, the house edge is 4%. It applies across all game types including live tables and slots.
Volatility describes how a slot distributes its payouts. High volatility means wins are less frequent but larger when they occur. Low volatility means smaller, more regular payouts. The label — high, medium or low — appears on the game detail card where the provider has disclosed it.
A wager or turnover requirement is the total amount you need to stake before a wallet credit or bonus balance becomes withdrawable.
In a slot or game context, jackpot refers to the highest prize available from a single game feature or prize pool attached to that title.
A live dealer game streams a real human dealer running a physical table — cards, roulette wheel or dice — via video. You place bets on your screen in real time.
These six terms come up in the sportsbook, cashier and account verification sections. They are distinct from the game mechanics defined above.
Asian handicap removes the draw outcome from a match by giving one side a head start or deficit in goals or runs. It reduces possible outcomes to two. On the cricket and football boards, the handicap value sits next to the team name in the market row.
Over/under is a market where you predict whether a measurable figure — total runs in a cricket innings, total goals in a match — will be above or below a line set by the odds board. It does not require picking a winner; only the total matters.
Rollover is the same concept as turnover requirement — the total wager amount needed before a credited balance unlocks for withdrawal. Some platforms use both terms interchangeably. The rollover figure for any active credit is stated in the information detail inside your signed-in account.
An e-wallet is a mobile-based payment account that holds a balance you can send or receive without a bank card.
KYC stands for Know Your Customer. It is an identity verification step that may be required before a withdrawal is processed or when an account passes a transaction threshold.
Decimal odds express the total return per unit staked, including the original stake. Odds of 2.50 mean a 100 BDT wager returns 250 BDT total if successful — 150 BDT profit plus the 100 BDT stake back. The sportsbook board at 228ok displays odds in decimal format by default.
Terms rarely appear in isolation. When you open a Crash HotSpin session, you see a multiplier climbing — that multiplier mechanic relates directly to what volatility and hit frequency describe in theory: the game pays infrequently but the potential multiplier is open-ended.
The climbing multiplier in Crash HotSpin is the live expression of high volatility — larger potential outcomes, less predictable timing. The game screen shows current multiplier and round history. No RTP figure is displayed unless the provider has published one for this specific title.
Prize Drop Bangladesh carries a prize pool counter visible on the game card before you enter the session. That counter is the practical form of what a progressive prize pool means.
After confirming a bKash deposit, your account wallet may show a credited bonus balance with a rollover figure attached. That figure is calculated from your deposit amount and the information terms. The exact multiplier and qualifying game categories are in the information detail screen inside your account.
A BPL match market on the sportsbook board shows team names, handicap values and decimal odds side by side. Decimal odds of 1.
If a definition here does not fully answer what you see on a specific screen — a information condition that uses language not covered above, a wallet status label you do not recognise, or an account verification step that is not clear — the support routes below are the
Open the chat widget from any page while signed in. Describe the term or screen you are looking at and the support team will locate the relevant section of your account or lobby and walk you through it.
Send a message through the contact form in your account settings. Include the term, the page or screen where you saw it, and your account reference if you have one. This route suits longer questions about information conditions or KYC steps.
The help section inside your signed-in account covers deposit steps for bKash, Upay and Bank Transfer, along with account verification and wallet balance explanations. Check there first for cashier and wallet terms — many definitions link directly to the relevant action.
These questions are about how specific features work on the platform — distinct from the definitions themselves. Each answer points to the account action or screen where you find the answer in practice.
Open the game detail card from the lobby or tap the information icon inside the game itself. If the provider has published an RTP figure for that specific title, it appears there.
Go to the information or bonus section inside your signed-in account. Each active credit shows the current wagered amount against the required rollover total. The figure updates after qualifying sessions are completed. Only wagers on qualifying game categories count toward the requirement.
A pending status means the transaction is in the processing queue. Check your bKash app to confirm the payment left your wallet. If your account wallet has not updated after the timeframe shown on the cashier screen, contact support via live chat with your bKash transaction reference.
KYC is not triggered on every withdrawal automatically. It activates when your account reaches a verification threshold or when the system flags a review.
The sportsbook board displays decimal odds as the default format for Bangladesh. Whether an alternative format is available is shown in the settings or display preferences section of the sportsbook interface. Cricket and football markets both use the same configured format shown in your account settings.
The over/under line is set by the odds compiler for each market and reflects expected match conditions at the time of pricing. It updates as the match approaches or during live betting.