Quick answer
The Ruby is a iSoftBet slot (2018) with 97.5% RTP and a 250,000x max win including the jackpot. It uses 30 paylines with free spins, progressive jackpot and wild symbols. RTP can vary by casino.
Key specs
- RTP
- 97.5%
- Max win
- 250,000x (incl. jackpot)
- Grid
- 5×3
- Pays
- 30 paylines
- Released
- 17 December 2018
- Bet range
- $0.30–$30
- Jackpot
- Progressive
Not published by the provider: volatility
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
- Aurivo Casino100% up to $1,000 + 200 Free Spins30x bonusGet 200 spins + 100% at Aurivo Casino (opens in new tab)
18+. New customers. Min dep $20. 30x bonus wagering. Max bet $5. 30 days. 200 spins on Book of Dead at $0.20. Credited in daily batches of 20 over 10 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. 30x bonus wagering requirement. Max bet $5 while wagering. Free spins on Book of Dead at $0.20 per spin. Spins credited in daily batches of 20 over 10 days. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
- Velmora150 No-Wager Free Spins Keep every winNo wageringClaim 150 no-wager spins at Velmora (opens in new tab)
18+. New customers. Min dep $20. No wagering. 7 days. 150 spins on Big Bass Bonanza at $0.10. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. No wagering on winnings. Free spins on Big Bass Bonanza at $0.10 per spin. Offer valid 7 days. Full T&Cs apply. Please gamble responsibly.
- Kronos Royale200% up to $2,000 + 10% weekly cashback40x bonusGet 200% bonus at Kronos Royale (opens in new tab)
18+. New customers. Min dep $50. 40x bonus wagering. Max bet $10. 60 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $50. 40x bonus wagering requirement. Max bet $10 while wagering. Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week. Offer valid 60 days. Full T&Cs apply. Please gamble responsibly.
Game availability varies by casino and country.
Themes:
How to play The Ruby (members only)
Wins are paid when matching symbols land on an active payline, usually left to right starting from the leftmost reel. Your total stake is spread across the lines, and each line win is the line bet multiplied by the symbol's paytable value.
The Ruby is played on a 5×3 grid with 30 paylines.
- Set your stake. Choose your total bet per spin between $0.30 and $30. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
- Trigger the bonus. Land the required scatter symbols to start the free spins feature.
The full The Ruby guide: how winnings work, 4 features and 3 strategy tips
- What 97.5% RTP costs per $100 wagered: $2.50 on average
- 4 features explained: free spins, progressive jackpot, wild symbols, sticky wilds
- Strategy tips for The Ruby
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 97.5% RTP costs per $100 wagered, the 250,000x max win at a $1 stake
The top prize is capped at 250,000x your stake (including the jackpot). On a $1 spin that is $250,000; on $0.20 it is $50,000. When the cap is reached the round usually ends immediately.
What 97.5% RTP means
Expected return = stake × 97.5%
Over $100 of total bets, the long-run average loss is $2.50
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a volatile game.
Features explained (members only)
4 features explained: free spins, progressive jackpot, wild symbols, sticky wilds
Free spins
A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.
Progressive jackpot
A jackpot that grows with a share of every qualifying bet until someone wins it. Contributions are funded from the game's RTP.
Wild symbols
Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.
Sticky wilds
Sticky wilds stay locked in place for several spins or for the rest of a feature, giving every following spin a better chance of connecting wins.
Strategy tips (members only)
- Check jackpot eligibility. Some progressive jackpots require a minimum or maximum stake to win the top prize. Part of every bet funds the jackpot, so base-game RTP is lower.
2 more tips
- Bonus wagering: at 97.5% RTP, clearing $1,000 of wagering costs about $25.00 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Questions
Frequently asked questions
Who makes The Ruby?
The Ruby is developed by iSoftBet and was released in 2018.
What is the RTP of The Ruby?
The default RTP of The Ruby is 97.5%.
What is the max win on The Ruby?
The maximum win on The Ruby is 250,000x your stake including the jackpot, which is $250,000 on a $1 spin.
Can I play The Ruby for free?
Not on GambGenius at the moment: we don't list an official iSoftBet demo of The Ruby.
Does The Ruby have a bonus buy?
No bonus buy is listed for The Ruby in the sources we checked.
Where this data comes from
- slotcatalog.com Slot database
- slotslaunch.com Slot database
Specs come from 2 independent slot databases. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © iSoftBet, shown to identify the game.
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