Slots / App
From RTP and house edge to Asian handicap and e-wallet rollover, the terms you see on game screens and account pages all have plain meanings.
Every screen in the lobby uses shorthand that was designed for speed, not explanation. A slot's volatility label shapes how your balance moves across a session. A handicap line in the football market shifts the effective starting score before kick-off. A KYC step in your account protects your wallet from unauthorised access.
These are the terms you see most often on slot and live table screens. Each definition stays close to how the word behaves on an actual game screen inside the lobby.
Return to Player. The percentage of total wagers a game is designed to return to players over a very large number of rounds. A figure like 96% means 96 units returned per 100 wagered on average across millions of rounds — it describes the game mechanic, not a session guarantee. RTP is shown only where the game or provider publishes it.
House edge is the mirror of, the house edge is 4%. It represents the mathematical advantage built into the game over time.
Volatility describes how a slot distributes its prizes. High volatility means prizes arrive less often but tend to be larger when they hit. Low volatility means smaller prizes land more frequently. Your balance moves in very different patterns depending on which type you are playing — important when comparing Samarinda Night Spins to a steadier reel title.
A wager is any confirmed bet stake placed on a game round or market. Turnover is the accumulated total of all wagers across a session or period. Both terms appear on account statements and inside any condition attached to wallet credits or promotional rounds tied to game activity.
Jackpot refers to a game's top-tier prize pool, triggered by specific rare symbol combinations or bonus round outcomes. It is a game mechanic, not a promotional promise. Whether a title carries a fixed or progressive jackpot structure depends on the game design, not on the platform.
A live dealer game streams a human dealer from a studio in real time. You place bets via the interface while watching the physical deal happen on screen. Standard table games use a Random Number Generator instead of a physical dealer — the rules of the game are the same, but the experience and pace differ meaningfully.
These terms appear in the sportsbook markets, payment pages and account verification steps. Understanding them helps you read a bet slip or complete an account action without guesswork.
Asian handicap removes the draw outcome and gives one team a virtual head-start or deficit before the match starts. A −1. 5 handicap means that team must win by two or more goals for the bet to win. It is common in Liga 1 and European football markets on the sportsbook.
Over/under (also called totals) is a market where you bet on whether a measurable match statistic — most often total goals — finishes above or below a line set by the market. It is independent of which team wins, making it a separate decision from a match-result bet.
Rollover is the total wager volume required before a credited amount can be withdrawn. If a wallet credit carries a 5x rollover, you must place confirmed bets totalling five times that amount across eligible games. The current rollover progress is shown in your account dashboard after login.
E-wallet refers to a digital payment account such as GoPay, OVO or DANA. On the deposit and withdrawal pages at mardeka138, your linked e-wallet is the channel through which funds move between your payment app and your game wallet. Availability depends on your region and local law.
Know Your Customer. KYC is an account verification step that confirms your identity before withdrawal or at a threshold set in account settings. It typically requires you to submit identity documents through the verification section of your account. The exact fields and required documents are shown in the account verification page.
Decimal odds express the total return per one unit wagered, including the stake — so odds of 2. 50 return 2. 50 for every 1 unit placed. Fractional odds show profit only (5/2 means 2. 50 profit per 1 unit staked). The mardeka138 sportsbook displays odds in decimal format by default.
Terms cluster by the part of the lobby they belong to. Knowing where to look for each family saves time when you are mid-session and want to verify a figure or condition.
RTP, volatility, house edge and bonus round labels appear on the game detail card before you open a title, and inside the paytable once a game loads. For live tables like Live Dragon Tiger Diamond, bet limits and side-bet options display in the table lobby overlay before you take a seat.
Handicap, over/under, match odds and outright market terms live in the sportsbook section. Football-market lines for Liga 1 and European fixtures display in the bet slip alongside your selected odds format. The Badminton Open Bet market follows the same layout with match and set-level lines.
Deposit, withdrawal, e-wallet, QRIS and transfer terms appear on the cashier page. Your linked GoPay, OVO or DANA account is shown in the payment method row. Transaction history with reference IDs is accessible from the wallet section of your account dashboard after login.
Rollover, turnover requirement and eligible games are the three condition terms attached to any wallet credit. All active conditions and their current progress are visible in your account dashboard after login — not in the game lobby. Check there before starting a session if a credit is active.
Terms rarely arrive alone — they appear in clusters at real decision points. When you are choosing between Fortune Fishing Game and a live baccarat table, volatility and house edge become the two numbers worth comparing side by side: the fishing title carries game-mechanic prize rounds that ca
On the Samarinda Night Spins detail card, the volatility indicator tells you whether to expect frequent small prizes or rarer, larger ones. Matching volatility to your session length is a practical use of this label — not just a technical footnote.
A −1 handicap on a Liga 1 favourite means you need a two-goal win to collect, or a one-goal win pushes the bet. Spotting this before confirming the bet slip prevents a misread result — the handicap label is always in the market description row.
In Crash Fast Lift, the multiplier rising from 1x is not a guaranteed payout — it is a live game mechanic that ends when the round closes. Cashing out before the round closes locks your current multiplier; waiting longer increases the potential return but also the risk of losing the wager.
When your account triggers a KYC prompt, the document upload page lists the exact file types and size limits required. Completing it clears the flag and allows withdrawal to your verified GoPay or DANA account, subject to local law and eligible regions.
These questions cover how the features described in the glossary actually work inside your mardeka138 account and the lobby — not the definitions themselves, but the steps and screens where they appear.
Open the game detail card from the slot lobby — if the studio has published an RTP figure, it appears in the game information panel there. If no figure is shown, the studio has not exposed it. We do not display RTP values that are not source-confirmed by the game provider.
Log in to your account and open the wallet or dashboard section. Any active rollover condition shows the current wager total against the required amount. The figure updates after each confirmed bet round that counts toward the eligible game list attached to the credit.
The odds format selector is in the sportsbook settings bar, usually shown at the top of the market page. Switching it changes the display across all open markets in the same session without altering the underlying market prices or your active bet selections.
A name mismatch between your GoPay account and your submitted identity document will pause the KYC review. The account verification page explains the correction steps. Resolving the mismatch before submitting saves time — check both names match before uploading documents.
Yes. The live casino section streams tables with human dealers in real time — Live Dragon Tiger Diamond is one example. The standard table games section uses RNG-based outcomes with no physical dealing. Both sections are accessible from the main lobby navigation without switching accounts or logging out.
No. Crash games use a live multiplier mechanic rather than reel-spin volatility. There is no fixed volatility label; instead, each round's outcome depends on when the multiplier stops. The cashout control is your active decision point each round, separate from how slot volatility works.
If a term in the lobby, on a game screen, or inside your account page does not match what you expected based on these definitions, our support team can walk you through what the label means in that specific context. Reach out through any of the channels below — availability depends on local conditions and your account region.
Start a live chat session from the help icon in the lobby or account pages. Describe the term and the screen where you saw it — our team responds in the session window and can point you to the exact account or game panel that contains the relevant figure or condition.
Your account dashboard includes a help and FAQ section that covers wallet terms, KYC steps and game-mechanic labels. If a rollover condition or deposit term is unclear, the account help page shows the current state of your conditions and links to the relevant definition in plain language.
Send a detailed question to the support email listed on the contact page. Include a screenshot of the term or screen that is unclear, your account ID, and the payment method involved — GoPay, DANA or OVO — if your question relates to a wallet or cashier step. Response time varies by queue.