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 wheel that can award free spins with extended wilds, one of three jackpots or a prize of up to 100x your bet. The RTP is 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 | 97.5% |
| Bet range | 0.30 to 30 per spin |
| Max win | Check the paytable (sources differ) |
| Main features | Ruby on Fire wild reels; a bonus wheel with free spins (extended wilds), three jackpots or a prize of 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 is a prize wheel that can award free spins with extended wilds, one of three jackpots (Cherry, Topaz or Ruby) or a prize of up to 100x your total bet.
What is The Ruby’s RTP?
The Ruby’s RTP is 97.5%, 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.
- Watch reels 1, 3 and 5: that is where Ruby on Fire wilds and bonus symbols land.
- Don’t count on free spins from every bonus: the wheel can also land on a jackpot or a prize of up to 100x your bet.
Slots like The Ruby
- Sizzling Hot Deluxe: a pure retro fruit slot.
- Big Win 777: classic 7s and bars with a Chance Wheel.
- Types of slots: classic, fruit, video and more.
- Highest RTP slots: more high-paying games.
Where to play The Ruby
Our top-rated casino, 1win (9.9/10), paid our crypto withdrawal in 15 minutes. Search its lobby for “The Ruby” (an iSoftBet game). New players can use promo code Ultragambler (see our 1win promo code page). If you like high-RTP slots, compare it with Big Bad Wolf, and check the info screen shows the 97.5% version.
How we checked this
The key figures on this page are each checked against at least two independent sources:
- RTP of 97.5%: SlotCatalog and AskGamblers.
- An iSoftBet slot with 5 reels, 3 rows and 30 lines: SlotCatalog and VegasSlotsOnline.
- Bets from 0.30 to 30 per spin: SlotCatalog and LetsPlaySlots.
- Ruby on Fire can turn reels 1, 3 and 5 wild: VegasSlotsOnline and SlotsJudge.
- Bonus symbols on reels 1, 3 and 5 trigger the bonus: AskGamblers and LetsPlaySlots.
- The bonus wheel can award free spins with extended wilds, one of three jackpots or a prize of up to 100x your total bet: VegasSlotsOnline and LetsPlaySlots.
Facts last checked: 7 October 2026. Sources disagree on the max win, so check the paytable in the game before you play.
The Ruby FAQs
Does The Ruby have jackpots?
Yes. The bonus wheel can award one of three jackpots (Cherry, Topaz or Ruby), free spins with extended wilds or a prize of up to 100x your total bet.
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.
