Quick answer
Rainbow Odyssey is a Spinomenal slot (2024) with 95.78% RTP and a 3,000x max win. It uses 20 paylines with free spins, bonus buy and wild symbols. An official free demo is available. RTP can vary by casino.
On this page9 sections
Key specs
- RTP
- 95.78%
- 0.26 points below the median (96.04%)
- Max win
- 3,000x
- Higher than 32% of slots in our database
- Grid
- 5×4
- Pays
- 20 paylines
- Released
- 11 Apr 2024
- Jackpot
- None
Not published by the provider: volatility, bet range
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
Ad disclosure: we currently earn nothing from the brands listed; if that changes, each offer will say so. How we make money
- 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
Every significant term is in the line above.
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
Every significant term is in the line above.
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
- Cashback
- Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week.
Full T&Cs apply. Please gamble responsibly.
Game availability varies by casino and country.
Themes:
Free demo Members
Try Rainbow Odyssey with play money before deciding whether to play for real. Official Spinomenal demos are free for GambGenius members.
How to play Rainbow Odyssey (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.
Rainbow Odyssey is played on a 5×4 grid with 20 paylines.
- Set your stake. Choose your total bet per spin. 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.
- Optional bonus buy. Where permitted, pay a fixed price to start the bonus directly.
The full Rainbow Odyssey guide: how winnings work, 5 features and 4 strategy tips
- What 95.78% RTP costs per $100 wagered: $4.22 on average
- 5 features explained: free spins, bonus buy, wild symbols, expanding wilds, respins
- Bonus-buy risk breakdown
- 4 RTP versions compared: 95.78%, 94.19%, 92.6%, 89.53%
- Strategy tips for Rainbow Odyssey
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 95.78% RTP costs per $100 wagered, the 3,000x max win at a $1 stake
The top prize is capped at 3,000x your stake. On a $1 spin that is $3,000; on $0.20 it is $600. When the cap is reached the round usually ends immediately.
What 95.78% RTP means
Expected return = stake × 95.78%
Over $100 of total bets, the long-run average loss is $4.22
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)
5 features explained: free spins, bonus buy, wild symbols, expanding wilds and more
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.
Bonus buy
Lets you pay a fixed multiple of your stake to enter the bonus feature straight away instead of waiting for it to trigger. It raises variance considerably and is not available in every country (it is banned in the UK).
Wild symbols
Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.
Expanding wilds
When an expanding wild lands, it grows to cover its whole reel, turning one symbol into a full column of wilds.
Respins
Selected reels or the whole grid spin again without a new stake, usually triggered by a specific symbol combination or near-miss feature.
Strategy tips (members only)
- Check which RTP version you're playing. Spinomenal offers this game at 95.78%, 94.19%, 92.6%, 89.53%. Open the game rules at your casino and prefer sites running the 95.78% version.
3 more tips
- Treat bonus buys as high-risk. Buying the feature concentrates your budget into a few large-variance rounds. Many results return less than the price paid. Read our bonus buy guide first.
- Bonus wagering: at 95.78% RTP, clearing $1,000 of wagering costs about $42.20 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.
RTP versions (members only)
4 RTP versions compared: 95.78%, 94.19%, 92.6%, 89.53%
Spinomenal supplies Rainbow Odyssey in 4 RTP versions and each casino chooses which one to run. Over $1,000 of bets, the 89.53% version costs about $62.50 more on average than the 95.78% version.
| Version | Average cost per $100 wagered | Extra vs best |
|---|---|---|
| 95.78% (best) | $4.22 | — |
| 94.19% | $5.81 | +$1.59 |
| 92.6% | $7.40 | +$3.18 |
| 89.53% | $10.47 | +$6.25 |
Open the game's rules or info screen at your casino to see which version it runs.
Seen a different version at a casino? How member RTP reports work
Questions
Frequently asked questions
Who makes Rainbow Odyssey?
Rainbow Odyssey is developed by Spinomenal and was released in 2024.
What is the RTP of Rainbow Odyssey?
The default RTP of Rainbow Odyssey is 95.78%. Spinomenal also supplies versions at 94.19%, 92.6%, 89.53%, so check the game's info screen at your casino.
What is the max win on Rainbow Odyssey?
The maximum win on Rainbow Odyssey is 3,000x your stake, which is $3,000 on a $1 spin.
Can I play Rainbow Odyssey for free?
Yes. GambGenius members can play the official Spinomenal demo of Rainbow Odyssey free on this page. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does Rainbow Odyssey have a bonus buy?
Yes. Rainbow Odyssey includes a bonus buy option, although it is unavailable in some countries such as the UK.
Where this data comes from
- web.archive.org Archived page
- slotcatalog.com Slot database
Specs come from 1 independent slot database and an archived copy of a published page. Casinos can run lower-RTP versions, so always check the game rules before you play.
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