Terms	Relevance	Description
Arcade game	Generic Term	A group of casino games that offer something novel or unique from the traditional offerings such as physics-based games.
Base Game	All casino games	The basic function of the slot game in which the player clicks a spin button, and the reels spin and stop, possibly providing a prize.
Bet-size / Coin-size	Generic Term	The size of the bets allowed on the game by the casino.
Bingo / Keno game	Generic Term	A group of casino games involving number matching or work from bingo-esque mechanics.
Black Markets	Generic Term	Jurisdictions where it is expressly forbidden to offer online gambling services and there is a lack of transparency and scrutiny.
Bonus Games	All casino games	A type of game that is different from the standard base game that typically offers a specific type of slot feature with larger wins.
Cascade	Slot games	A type of slot game in which matching symbols are removed from the game window and symbols above drop down to potentially make more matches.
Croupier / Dealer	Generic Term	The theoretical casino player, typically playing against the player in a casino game.
Freespins	Slot games	A type of bonus game in which the slot game plays without the need for the player making a further wager.
Game Window	Slot games	The display area of the slot reels/rows that is used to overlay win-lines and present the player with wagers.
Grey Markets	Generic Term	Jurisdictions where it is not explicitly legal but it is also not explicitly illegal to offer online gambling activities OR where there is gambling regulation but it is not widely recognized as being effective or virtual.
House Edge	Generic Term	The theoretical % paid to the casino over a fixed amount of time for hedging the player’s wager.
Instant Win game / Scratch ticket	Generic Term	A group of casino games that are based on a scratch card mechanic of scratching panels to reveal matching symbols underneath.
Line symbol	Slot games	A type of slot symbol that has a fixed pay-out for matching a number of these on a win line.
Lines / Pay-lines / Win-lines	Slot games	The pattern allocated across the game window that represents a win if the symbols match.
Meta-game	Generic Term	A game that is applied on top of a casino game that doesn’t offer a wager or affect the bet logic but offers other returns in the way of enjoyment or a sense of achievement much like a casual game.
OAK	Slot games	Of A Kind, which is another way to describe symbol matching.
Operator / House / Casino	Generic Term	The casino that offers the games to the player and underwrites the wager.
PAR Sheet (probability assessment report)	Generic Term	The mathematical model that drives most casino games.
Perfect / Optimal Strategy	Generic Term	Casino games that offer an element of player choice typically have an optimum strategy that would provide the highest RTP over time if the player followed it consistently.
Persistent state	Generic Term	The ability for a player’s progress to be saved and returned to the player when they return to the game at a later stage.
Poker game	Generic Term	A group of casino games that involve poker-based games played against the casino only.
Progressive feature	Generic Term	A feature in which the player can progress through multiple levels of the game entirely dependent on a previous result.
Reactor	Slot games	A type of slot game in which you match a group of symbols not necessarily along a win-line.
Reel stops	Slot games	Each point on a reel where a symbol exists is known as a reel stop.
Reels	Slot games	A theoretical fixed list of slot game symbols that rotate when a slot machine is spun.
Regulated Markets	Generic Term	Jurisdictions where it is legal to offer online gambling and there is a country/state government-supported regulation, infrastructure, and systems to administer and oversee gambling activities.
Rows	Slot games	The number of reel stops that are displayed in the game window.
RTP / Return to player	Generic Term	The theoretical % paid to the player over a fixed amount of time for wagering on that game.
Scatter symbol	Slot games	A type of slot symbol that triggers a specific event or win.
Skill game	Generic Term	A group of casino games where the player can increase the odds of winning through their skill in the game.
Slot game	Generic Term	A group of casino games where you spin reels to match symbols.
Symbols	Slot games	The different images that are mapped to the slot reels that a player has to match to trigger a win or a specific event.
Table game	Generic Term	A group of casino games that are typically played on game tables and/or with cards and dice.
Ways to Win / 243 Ways to Win	Slot games	A mechanic in which there are no longer any pay-lines but rather 3+ matching symbols in any position on consecutive reels constitute a win. For a 5×3 game window, this means 243 possible winning combinations.
Wilds	Slot games	A type of slot symbol that will match any other symbol.