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Quick verdict: The Ruby is iSoftBet’s classic-style jewel slot with 5 reels, 3 rows and 30 lines. Reels 1, 3 and 5 can turn wild at random in the Ruby on Fire feature, and bonus symbols on those reels open a bonus with free spins and three jewel jackpots worth up to 100x your bet. The RTP is about 97.5%, well above the online average. Sources do not agree on the max win, so check the paytable.
Where we play The Ruby
1win is our top-rated casino (9.9/10), with thousands of slots and a crypto withdrawal that took 15 minutes in our test.
Play at 1win18+. T&Cs apply. Not available in every country. Game libraries vary, so search the lobby for The Ruby.
The Ruby at a glance
| Provider | iSoftBet |
| Layout | 5 reels, 3 rows, 30 lines |
| RTP | About 97.5% (one source lists 97.59%) |
| Bet range | 0.30 to 30 per spin |
| Max win | Check the paytable (sources differ) |
| Main features | Ruby on Fire wild reels, free spins with extended wilds, jewel jackpots up to 100x |
How The Ruby works
Wins pay on 30 lines with classic-style symbols. The wild substitutes for regular symbols and is also one of the top-paying symbols.
Ruby on Fire
On any spin, reels 1, 3 and 5 can turn completely wild, in any combination. This is the main base-game feature and can create several line wins at once.
Bonus round and jackpots
Bonus symbols on reels 1, 3 and 5 trigger the bonus. It can award free spins with extended wilds or one of three jewel jackpot prizes, worth up to 100x your total bet.
RTP and volatility: what they mean for you
At about 97.5%, The Ruby’s RTP is well above the online average of around 96%. Check the info screen at your casino to confirm the version.
Tips for playing The Ruby
- Check the RTP in the info screen.
- Ruby on Fire is the main base-game feature, so be patient.
- Try the demo first.
- Set a budget before you play.
Slots like The Ruby
- Sizzling Hot Deluxe: a pure retro fruit slot.
- Fruit slots: more fruit machines.
- Classic slots: retro slot machines.
- Highest RTP slots: more high-paying games.
Where to play The Ruby
Our top-rated casino, 1win (9.9/10), carries thousands of slots and paid our crypto withdrawal in 15 minutes. Search its lobby for “The Ruby”. New players can use promo code Ultragambler for the welcome package; see our 1win promo code page. Game libraries and RTP versions vary by country, so search the lobby and check the RTP in the game’s info screen.
The Ruby FAQs
What is the RTP of The Ruby?
About 97.5%. One source lists 97.59%.
Who made The Ruby?
iSoftBet.
What is Ruby on Fire?
A random feature that can turn reels 1, 3 and 5 fully wild.
Does The Ruby have free spins?
Yes. The bonus round, triggered by bonus symbols on reels 1, 3 and 5, can award free spins with extended wilds.
Important: check your local laws before you play
Online gambling laws differ from country to country, and in some places it is restricted or not permitted at all. Check that online gambling is legal where you live and that the casino accepts players from your country. You must be 18 or older (or the legal gambling age in your country, if higher). Only gamble with money you can afford to lose.
