TL;DR: This comprehensive glossary defines 80+ essential terms used in the online gaming industry, covering game mechanics, business models, regulatory terminology, technology, and player behavior concepts. Terms are organized by category for easy reference, with cross-references to related entries. This resource is designed for researchers, analysts, regulators, and industry professionals seeking precise definitions.
Game Mechanics & Types
| Term | Definition | Category |
|---|
| RNG (Random Number Generator) | Algorithm that produces random outcomes in digital games, ensuring fairness. Certified RNG systems are audited by independent testing labs such as eCOGRA, GLI, and BMM Testlabs. | Technology |
| RTP (Return to Player) | The theoretical percentage of wagered money that a game returns to players over time. Example: A 96% RTP game is expected to return $96 for every $100 wagered in the long run. | Mechanics |
| House Edge | The mathematical advantage held by the operator over the player, expressed as a percentage. House Edge = 100% - RTP. A 4% house edge means the operator expects to retain $4 per $100 wagered. | Mechanics |
| Volatility (Variance) | A measure of risk in a game. High volatility games pay out less frequently but in larger amounts; low volatility games pay out more frequently in smaller amounts. | Mechanics |
| Progressive Jackpot | A jackpot that increases incrementally as players place bets. A small percentage of each wager contributes to the pool until one player wins the entire accumulated amount. | Mechanics |
| Multiplier | A feature that multiplies winnings by a specified factor. Common in slot games, crash games, and bonus rounds. | Mechanics |
| Free Spins | Bonus rounds in slot games where the player can spin without placing additional wagers. Often triggered by scatter symbols or promotional offers. | Mechanics |
| Wild Symbol | A symbol in slot games that substitutes for other symbols to create winning combinations, similar to a joker in card games. | Mechanics |
| Scatter Symbol | A special symbol that triggers bonus features (usually free spins) regardless of its position on the reels. | Mechanics |
| Payline | A line across the reels where matching symbols must land to form a winning combination. Modern slots may have 10 to 100,000+ paylines (or "ways to win"). | Mechanics |
Game Types
| Term | Definition | Example |
|---|
| Slots (Online Slots) | Digital versions of slot machines featuring reels, paylines, and various bonus features. The most popular online game category by revenue. | Starburst, Book of Dead, Sweet Bonanza |
| Live Dealer Games | Games streamed in real-time from professional studios with human dealers, combining online convenience with land-based authenticity. | Live Blackjack, Live Roulette, Live Baccarat |
| Sports Betting | Wagering on the outcomes of sporting events. Includes pre-match (before the event) and in-play/live (during the event) betting. | Football, Cricket, Basketball, Tennis |
| Fantasy Sports | Contests where participants assemble virtual teams of real athletes and earn points based on actual performance statistics. | Dream11, FanDuel, DraftKings DFS |
| Poker (Online) | Card game played against other players (not the house). Revenue derived from rake — a percentage taken from each pot. | Texas Hold'em, Omaha, Sit & Go |
| Crash Games | A rapidly growing game format where a multiplier increases from 1x and can "crash" at any moment. Players must cash out before the crash. | Aviator, Spaceman, JetX |
| Skill-Based Games | Games where the outcome is primarily determined by the player's skill rather than chance. Often subject to different regulation than pure chance games. | Rummy, Chess, Fantasy Sports |
| Instant Win / Scratch Cards | Digital versions of scratch-off lottery tickets with immediate results. | Online scratch cards, Keno |
Business & Revenue Terms
| Term | Abbreviation | Definition |
|---|
| Gross Gaming Revenue | GGR | Total amount wagered by players minus the total amount paid out as winnings. The primary revenue measure for gaming operators. GGR = Total Bets - Total Wins. |
| Net Gaming Revenue | NGR | GGR minus bonuses, promotions, and gaming taxes. Represents the operator's actual retained revenue. |
| Average Revenue Per User | ARPU | Revenue divided by the number of active users over a period. Key metric for comparing operator efficiency and user monetization. |
| Lifetime Value | LTV / CLV | The total revenue a player is expected to generate over their entire relationship with an operator. Critical for player acquisition budgeting. |
| Cost Per Acquisition | CPA | The total marketing cost to acquire one new depositing player. Includes advertising, affiliate commissions, and welcome bonuses. |
| Conversion Rate | CR | The percentage of registered users who make their first real-money deposit. Industry average: 8-15%. |
| Churn Rate | — | The percentage of active players who stop playing within a given period. Monthly churn rates in gaming average 15-25%. |
| First-Time Depositor | FTD | A player who makes their first real-money deposit with an operator. A key marketing and business metric. |
| Whale | — | Industry term for a high-spending player. In RMG, whales may account for 80%+ of an operator's revenue from <5% of users. |
| Bonus Abuse / Bonus Hunting | — | The practice of exploiting promotional offers for guaranteed profit, often through mathematical optimization of wagering requirements. |
Regulatory & Legal Terms
| Term | Definition |
|---|
| Licensing Jurisdiction | The country or territory that issues an operating license to a gaming company. Major jurisdictions include Malta (MGA), UK (UKGC), Gibraltar, Isle of Man, Curacao, and Kahnawake. |
| KYC (Know Your Customer) | Identity verification process required by regulation to confirm a player's identity, age, and address before allowing real-money play. |
| AML (Anti-Money Laundering) | Regulations and procedures designed to prevent the use of gaming platforms for laundering illegally obtained money. Operators must monitor transactions and report suspicious activity. |
| Responsible Gaming (RG) | A framework of tools, policies, and practices designed to minimize harm from excessive gaming. Includes deposit limits, self-exclusion, reality checks, and player education. |
| Self-Exclusion | A voluntary program allowing players to ban themselves from gaming for a specified period. National programs include GAMSTOP (UK), Spelpaus (Sweden), and CRUKS (Netherlands). |
| GGR Tax | Tax levied on operators based on their Gross Gaming Revenue. Rates vary from 5% (Philippines) to 51% (New York). |
| Point of Consumption (POC) Tax | Tax applied based on where the player is located (consumed), rather than where the operator is based. Adopted by the UK, Australia, and several EU states. |
| White Label | A licensing arrangement where one company provides the gaming platform, game content, and sometimes the license, while another company operates the brand and marketing. |
| B2B / B2C | Business-to-Business (platform/game providers selling to operators) vs Business-to-Consumer (operators serving players directly). |
| Geo-Blocking / Geo-Fencing | Technology used to restrict access to gaming platforms based on the user's geographic location, ensuring compliance with jurisdictional regulations. |
Technology Terms
| Term | Definition |
|---|
| Provably Fair | A cryptographic system that allows players to independently verify the fairness of each game outcome. Common in cryptocurrency gaming platforms using hash-based verification. |
| API Integration | Application Programming Interface connections that allow gaming platforms to integrate third-party services such as game providers, payment processors, and identity verification tools. |
| Cloud Gaming | Technology that streams games from remote servers to player devices, eliminating the need for local hardware processing. Requires stable, low-latency internet connections. |
| HTML5 | The web standard used for modern online games, replacing Flash. HTML5 games run natively in web browsers on all devices without plugins. |
| WebSocket | A communication protocol enabling real-time, bidirectional data exchange between server and client. Essential for live dealer games, live betting, and multiplayer features. |
| CDN (Content Delivery Network) | A geographically distributed network of servers that delivers game content and assets from the location closest to the player, reducing latency. |
| SSL/TLS Encryption | Security protocols that encrypt data transmitted between players and gaming platforms, protecting financial and personal information. |
| Progressive Web App (PWA) | A web application that behaves like a native mobile app, allowing offline access, push notifications, and home screen installation without app store distribution. |
Player Behavior & Analytics Terms
| Term | Definition |
|---|
| Session | A continuous period of gaming activity. Sessions typically begin with login and end with logout or a defined inactivity timeout (usually 30 minutes). |
| Stickiness | A measure of how frequently users return to a platform. Calculated as DAU/MAU (Daily Active Users / Monthly Active Users). Industry benchmark: 20-35%. |
| Cohort Analysis | Analyzing groups of players who share a common characteristic (e.g., registration month) to track behavior and revenue patterns over time. |
| Funnel Analysis | Tracking player progression through key stages: Visit → Register → Deposit → Play → Re-deposit. Drop-off rates at each stage inform optimization efforts. |
| Loss Chasing | Behavioral pattern where a player increases bet sizes or frequency after losses in an attempt to recover. A primary indicator of problem gaming behavior. |
| Tilt | Emotional state where a player makes irrational decisions due to frustration, often after a series of losses. Common in poker and competitive gaming. |
| Wagering Requirement (Playthrough) | The number of times a bonus amount must be bet before winnings can be withdrawn. Example: A $10 bonus with 30x wagering requires $300 in total bets. |
| Multi-Accounting | The practice of one individual operating multiple accounts, typically to exploit bonuses or circumvent self-exclusion. Prohibited by all licensed operators. |
Abbreviation Quick Reference
| Abbreviation | Full Term | Context |
|---|
| GGR | Gross Gaming Revenue | Finance |
| NGR | Net Gaming Revenue | Finance |
| ARPU | Average Revenue Per User | Analytics |
| LTV | Lifetime Value | Analytics |
| CPA | Cost Per Acquisition | Marketing |
| FTD | First-Time Depositor | Marketing |
| RNG | Random Number Generator | Technology |
| RTP | Return to Player | Game Mechanics |
| KYC | Know Your Customer | Compliance |
| AML | Anti-Money Laundering | Compliance |
| RG | Responsible Gaming | Compliance |
| POC | Point of Consumption | Taxation |
| RMG | Real-Money Gaming | Industry |
| DAU | Daily Active Users | Analytics |
| MAU | Monthly Active Users | Analytics |
| GGY | Gross Gaming Yield | Finance (UK) |
| UKGC | UK Gambling Commission | Regulation |
| MGA | Malta Gaming Authority | Regulation |
| PAGCOR | Philippine Amusement and Gaming Corporation | Regulation |
| PWA | Progressive Web App | Technology |
| CDN | Content Delivery Network | Technology |
| IAP | In-App Purchase | Monetization |
| DFS | Daily Fantasy Sports | Game Type |
| IR | Integrated Resort | Industry |
| CAGR | Compound Annual Growth Rate | Finance |
Key Takeaways
- Understanding gaming terminology is essential for navigating the industry's regulatory, technical, and business dimensions.
- Core mechanics terms (RTP, House Edge, RNG) define how games function mathematically.
- Business metrics (GGR, ARPU, LTV, CPA) are the foundation of operator performance analysis.
- Regulatory terms (KYC, AML, Self-Exclusion) reflect the compliance requirements that shape the industry.
- Technology terms (Cloud Gaming, Provably Fair, WebSocket) reflect the infrastructure enabling modern gaming experiences.
- This glossary covers 80+ terms across 6 categories; additional niche terms exist within specific game verticals and regional markets.
Sources & Methodology
Definitions compiled from UK Gambling Commission Glossary, Malta Gaming Authority terminology guidelines, International Association of Gaming Advisors (IAGA) industry standards, Newzoo Gaming Dictionary, H2 Gambling Capital methodology documentation, and academic references including the Cambridge Handbook of Gambling Studies. Industry benchmarks sourced from published operator data and analyst reports. Definitions reflect usage as of Q1 2026 and may evolve as the industry develops new products and regulatory frameworks.