From game-mechanics labels like RTP and volatility to wallet steps like KYC and rollover, this glossary covers the language you encounter across our slots, live casino tables and sportsbook.
Walking into any lobby without knowing what volatility or house edge means is a bit like reading a menu without knowing the dish.
TERM FAMILIES
Four Places These Terms Appear in the Lobby
The glossary is organised by where you encounter each term — not by alphabet — so you can jump straight to the screen you're looking at.
Game Mechanics
RTP, volatility, paylines, hit rate and RNG appear on the slot-detail panel of titles like Prize Carnival and Crash Smoke.
Odds and Markets
Asian handicap, over/under, decimal odds and spread appear in the sportsbook section, most visibly on cricket markets covering BPL and international fixtures. Understanding the format before you place a selection means you know exactly what return the odds are expressing.
Wallet and Account
Deposit, withdrawal, KYC, e-wallet and transaction history are terms you meet in the account panel. bKash and Rocket are listed there as configured local payment routes; Bank Transfer appears as a separate option. KYC is the identity check step before withdrawals are processed.
Information Conditions
Rollover, turnover requirement, minimum deposit and eligible game — these appear in the conditions attached to any active information notice. Reading them before you proceed tells you which game categories count toward a turnover total and which payment routes apply.
CORE DEFINITIONS
Core Gaming Terms — Plain Definitions
These are the six terms our support team explains most often. Each answer is kept to its essential meaning so you can read the full set in under two minutes.
What is RTP?
RTP stands for Return to Player. It is a percentage showing how much of all wagers a slot or table game is designed to return over a very large number of rounds.
What is house edge?
House edge is the mathematical advantage the game holds over you across all possible outcomes.
What is volatility?
Volatility — sometimes called variance — describes how often and how large a game's payouts are. High volatility means less frequent but larger wins; low volatility means more frequent but smaller wins. Volatility is a studio-set property and is shown only where the game provider displays it.
What does wager or turnover mean?
A wager is the amount you place on a single round or bet. Turnover refers to the total wagered across multiple rounds, often used in information conditions to define how much must be p
What is a jackpot in slot terms?
In slots, a jackpot refers to the highest prize a game's feature structure can pay. Some games have fixed jackpot amounts; others carry a progressive total that grows with play.
What is a live dealer?
A live dealer is a real person hosting a card or roulette table that is streamed to your device in real time. You place bets through the on-screen interface while the dealer runs the physical action.
ODDS AND ACCOUNT TERMS
Odds, Payments and Account Language Defined
This set covers the terms that appear in the sportsbook, the wallet section and the identity verification step. These are distinct from the game-mechanics terms above and apply across different parts of your account.
What is Asian handicap?
Asian handicap is a sportsbook market format that removes the draw option by giving one side a goal or run advantage before the match starts.
What does over/under mean?
Over/under is a market type where you predict whether the combined total — runs, goals or points — will finish above or below a number set by the sportsbook.
What is rollover in information terms?
Rollover is the total wagering amount you need to complete before funds from a information can be withdrawn. It is usually expressed as a multiplier of the qualifying deposit or gameplay amount. The specific multiplier and eligible game categories are stated in the information's conditions notice.
What is an e-wallet in the deposit context?
An e-wallet is a digital account that holds money independently of a bank card. At gtl99, bKash and Rocket function as e-wallets — you fund your account balance by sending from your bKash or Rocket wallet number through the deposit screen. Bank Transfer is a separate, non-wallet route.
What is KYC?
KYC stands for Know Your Customer. It is the identity verification step required before withdrawal requests are processed. You submit identification documents through the account panel; once verified, the KYC status shown in your account updates. The exact documents required are listed on the verification screen.
What is a decimal odds format?
Decimal odds show the total payout per one unit wagered, including your original stake. For example, odds of 2.50 return 2.50 for every 1.00 staked if the selection wins. The sportsbook displays decimal odds by default; you can confirm your preferred format in account settings.
TERMS IN CONTEXT
How These Terms Connect to Real Lobby Decisions
Knowing a term in isolation is useful; seeing where it appears on an actual screen is what makes it practical.
RTP on Prize Carnival
Open Prize Carnival and tap the information icon inside the game. If the studio has published an RTP, it appears there. We do not restate figures ourselves — the number shown in the game panel is the studio-set value for that title.
Asian Handicap on Cricket Markets
In the sportsbook, select a cricket fixture and scroll the market list. Asian handicap lines appear below the match winner market. The handicap figure and the corresponding odds update before the match starts and are visible before you confirm a selection.
KYC Status in Your Account
Your account panel carries a verification status label. If it reads unverified, the KYC screen opens when you tap it and lists exactly which documents to upload. Withdrawal requests are held at processing until that status updates to verified.
Rollover Counter on a Information
When a information is active, the conditions notice states the rollover multiplier and the eligible game categories. Your account overview displays a progress counter tracking how much of that turnover you have completed — check it there, not on the information landing notice.
ACCOUNT HELP ROUTES
Where to Get Help With a Term or Feature
If a definition here does not fully resolve what you are seeing on your screen, the three routes below connect you to direct assistance. Each channel is published on the site; we do not list channels that are not visibly available.
Live Chat
The live chat icon sits in the bottom corner of every page, including the lobby and your account panel.
Email Support
For account or wallet questions that need a written record — such as a bKash deposit that has not reflected in your transaction history — use the email route listed on the Contact page. Include your account reference and the transaction ID shown in your bKash or Rocket app.
Help Centre Articles
The Help Centre covers frequently asked process questions: how to complete KYC, how to read a rollover condition, and how Bank Transfer deposits are confirmed. Search by the exact term you see on your screen to find the matching article without needing to open a support ticket.
PLATFORM FEATURE QUESTIONS
Using These Features Inside gtl99
These questions cover how the terms from this glossary connect to actual steps inside your account — deposit screens, game panels and sportsbook markets. They are distinct from the definitions above.
Where do I see RTP for a slot title in the lobby?
Open the slot, then tap or click the information icon inside the game window. If the studio supplying the title has published an RTP, it displays there. Not every title shows this figure — it depends on what the studio exposes, not on a platform setting.
How do I complete KYC before a withdrawal?
Go to your account panel and look for the verification status label. Tap it to open the KYC screen, which lists the documents required. Upload them through the form shown there. Once the check is complete, the status label updates and your withdrawal request can be processed.
Can I deposit via bKash and have it count toward a rollover requirement?
The information conditions notice states which payment routes are eligible for a qualifying deposit. bKash is a configured deposit option at gtl99; whether a specific bKash deposit qualifies depends on the minimum deposit and eligible method listed in that information's conditions, not a general rule.
How do decimal odds work when I select a cricket market?
The decimal figure shown next to a cricket selection is the total return per one unit staked, stake included.
What happens if my bKash or Rocket deposit shows as pending?
A pending status in your transaction history means the payment is in process. Check your bKash or Rocket app to confirm the transfer completed on that side. If the status does not update and both records show success, contact support through live chat with your transaction ID ready.
Where do I find the rollover counter for an active information?
The rollover counter tracking your progress is shown in your account overview, not on the information notice itself. Open your account panel while logged in and look for the active information section. The counter updates as qualifying wagers are recorded across eligible game categories.