Social casino glossary

General concepts

Social casino

A game with casino mechanics played with virtual coins or chips that have no monetary value and never leave the game.

Virtual chips

The in-game currency. On IS Casino they cannot be withdrawn, exchanged for money or prizes, or transferred.

RTP (return to player)

The theoretical average share of chips played that a game returns over a very large number of rounds. See the RTP guide.

House edge

100% − RTP. At 97% RTP, 3%.

Volatility

The size of the swings around the RTP: high = rarer, bigger payouts; low = smaller, frequent ones.

Stake

How many virtual chips you put into a round; payouts are expressed as multiples of it (×10, ×500…).

Max payout

The largest multiple of the stake a single round can pay.

Fairness and verification

Provably fair

A method where the result is fixed first (hash published) and checked after (seed revealed). See the guide.

Server seed

The server’s secret used to generate results; hash first, seed after.

Client seed

Text you choose that goes into every result.

Nonce

The round number under a seed pair.

SHA-256 hash

A 64-character fingerprint; any change to the seed changes the hash.

HMAC-SHA256

The function that combines the server seed with the client seed and nonce to produce the round’s random number.

Slots

Reel

A column of slot symbols.

Payline

A fixed path across the reels where symbols must line up.

Ways

Combinations on consecutive reels from the left, at any height (1024 on a 5×4).

Cluster

A group of 5 or more identical symbols touching by their sides.

Wild

A symbol that substitutes others.

Scatter

A symbol that pays or triggers features in any position.

Cascade

Winning symbols vanish and new ones fall, possibly forming new combinations.

Multiplier

Multiplies a payout (×2, ×10, ×500…).

Free spins

Extra spins that cost no chips.

Respin

A free new spin of part of the screen.

Hold & Win

Coins lock and award 3 respins that reset with every new coin. See the guide.

Feature buy

Starting the feature directly for a fixed cost, at the same RTP.

Fixed jackpot

Mini, Minor, Major, Grand: fixed values in multiples of the stake.

Tables, game shows and poker

European roulette

37 pockets (0–36), a single zero, 97.3% RTP.

Basic strategy

The mathematically best blackjack decision for each hand against the dealer’s card.

Double down

In blackjack, doubling the stake on the first two cards in exchange for exactly one more card.

Punto banco

The classic form of baccarat, with fixed third-card rules.

Tie

A result where both sides are level; usually a separate choice with a higher payout.

Game show

A live table with a wheel, dice or cards and a host: Double, Money Wheel, Bac Bo, Football Studio.

Rake

A small per-pot fee the house takes in poker, in chips; that is why poker has no RTP.

Blinds

Forced chips posted before the cards in poker (small blind and big blind).

Bingo, crash and instant games

Card

A 5×5 grid of numbers; in 75-ball bingo, with a free centre cell.

Line / two lines / full card

The three bingo prizes: completing 1 of the 12 lines, 2 lines or all 25 cells.

Accumulated pot

Bingo’s progressive pot, paid with the full card when it lands within a ball limit.

Animal of the Round

The Bicho room prize for players who picked the animal of the ball that completes the full card.

Crash point

In crash, the multiplier at which the round ends; fixed before the round.

Automatic stop

A chosen multiplier at which crash stops for you.

Target multiplier

In Limbo, the value the result has to reach.

Frequently asked questions

What is RTP in a casino game?

RTP (return to player) is the average share of the chips played that a game returns over a very large number of rounds.

What is a wild?

A slot symbol that substitutes other symbols to complete combinations.

What is rake in poker?

The small per-pot fee the house takes in chips; on IS Casino, by default, 5% of the pot capped at 3 big blinds, with no rake when the hand ends before the flop.