A 15-tile colour wheel, not European roulette
Roobet's house Roulette shares only its name with the 37-pocket table game. Roobet's help centre describes it: "With 15 tiles, you've got 7 red, 7 black, and 1 lucky green", with "a classic red or black bet (2x payout)", "the 14x green jackpot" and "the 7x bait bet (right next to green)" (Triple Roo Jackpot article, 12 Nov 2026). Everyone at the table bets on the same spin, and the result is one of 15 numbers drawn from a public hash chain.
| Item | What Roobet states | Where |
|---|---|---|
| Tiles | 15: 7 red, 7 black, 1 green | Help centre, "Triple Roo Jackpot" (12 Nov 2026) |
| Payouts | Red 2x, black 2x, green 14x, bait 7x | Help centre, "Triple Roo Jackpot" and "Roobet House Games" (12 Nov 2026) |
| Bait tiles | "2 special squares … on either side of Green" | Help centre, "Roobet House Games" (12 Nov 2026) |
| Result | First 52 bits of a hash, modulo 15; 0 is green, 7 and 8 are bait | Roulette verifier linked from the fairness page (12 Nov 2026) |
| Jackpot | Triple Roo Jackpot, won when green lands three times in a row | Help centre, "Triple Roo Jackpot" (12 Nov 2026) |
| History | The last 100 results are shown in the game | Help centre, "Triple Roo Jackpot" (12 Nov 2026) |
| Maximum bet / payout | $100,000 / $3,000,000 | Roobet's public game settings for Roulette (12 Nov 2026) |
| RTP or house edge | No figure on the game page or in the help centre | Game page (1 Nov 2026), help centre (12 Nov 2026) |
| Seeding | Chain of 2 million hashes; salt from an Ethereum block named in advance | Fairness page and seeding post of 9 Jul 2026 |
The verifier's numbering explains the layout. Tile 0 is green. Tiles 1 to 7 are red and 8 to 14 black, and the two bait tiles are 7 and 8: the last red and the first black, which sit either side of green on the wheel. A bait bet wins on both of them and nowhere else.
What each bet returns: arithmetic from the payouts
Roobet does not state an RTP for this game. It does state every payout and the tile count, and the return of a bet is its payout times its share of the 15 tiles.
| Bet | Wins on | Tiles | Win chance | Pays | Return | Cost per $100 wagered |
|---|---|---|---|---|---|---|
| Red | Tiles 1 to 7 | 7 of 15 | 46.67% | 2x | 93.33% | $6.67 |
| Black | Tiles 8 to 14 | 7 of 15 | 46.67% | 2x | 93.33% | $6.67 |
| Green | Tile 0 | 1 of 15 | 6.67% | 14x | 93.33% | $6.67 |
| Bait | Tiles 7 and 8, the two beside green | 2 of 15 | 13.33% | 7x | 93.33% | $6.67 |
Arithmetic from the tile counts and payouts in Roobet’s help centre and verifier. Payouts include the stake, so 2x is a profit of one stake.
All four bets come to the same figure, 14/15 or 93.33%, a house edge of 6.67%. The cause is easy to see on the colour bets: seven tiles win and eight lose, where an even game would need the split to be equal. Green pays 14 on a 1-in-15 chance and bait pays 7 on a 2-in-15 chance, one unit short of fair in each case.
For scale, a single-zero roulette wheel costs 2.70% per unit wagered and a double-zero wheel 5.26%. This game costs more than either on every bet. Roobet's public settings for Roulette carry an "edge" value of 5; the payouts above are what a player is paid, and they work out to 6.67% before the jackpot is counted.
The Triple Roo Jackpot
A progressive pool runs alongside the wheel. Roobet's help centre says "every bet contributes to a growing prize pool that triggers when the green hits three times in a row", and Roobet's game page put the contribution at 0.66% of each bet (1 Nov 2026). The rules as published:
- The jackpot is won "any time that there are 3 greens in a row".
- Only green bets share it: "everyone who placed a bet on green during any of these 3 rounds will take a split of the jackpot prize pool".
- The pool "will be split into three, and the winnings from each third will be shared proportionately with the players from each round".
- Roobet's example: "You wagered 100 in one of the 3 rounds, and the total wager of that round was 200 - you'll receive 50% of one third (1/3rd) of the total Jackpot!"
Three greens in a row has a chance of 1 in 15 cubed, or 1 in 3,375, starting from any given round. The pool is funded by every bet and paid only to green bets placed in a winning sequence, so it raises the long-run return of green slightly and does nothing for red, black or bait. How much it adds depends on the pool size and on how much other money is on green in the same rounds, neither of which is fixed, so it cannot be turned into a single percentage.
Streaks and the "Last 100" panel
The game shows the last 100 results, and Roobet's help text invites players to "analyze trends, find patterns". The verifier shows why there are none to find: each result is a function of that round's hash alone. What the panel will show, by chance, is long gaps:
| Rounds in a row | No green | No red (or no black) |
|---|---|---|
| 5 | 70.8% | 4.32% |
| 10 | 50.2% | 0.19% |
| 15 | 35.5% | Under 0.01% |
| 30 | 12.6% | Under 0.01% |
| 50 | 3.2% | Under 0.01% |
| 100 | 0.10% | Under 0.01% |
Arithmetic: 14/15 per round for green to miss, 8/15 for one colour to miss.
Fifteen rounds without green happens more than a third of the time, and thirty rounds without it about one time in eight. Ten rounds without red happens about once in 537 ten-round windows, and with a round roughly every 24 seconds (public round data, 12 Nov 2026: 14 seconds of betting followed by the spin, payout and reset) the wheel turns about 150 times an hour. None of these gaps changes the next round, where green is still 1 in 15 and red still 7 in 15. At that pace a player staking $1 a round puts about $150 an hour through a 6.67% edge, an expected cost near $10 an hour.
How a round is generated and verified
Roobet's fairness page describes the chain games in two parts. The server seed side: "We repeat this process until we have 2 million hashes -- 2 million server seeds. The very first game uses the 2 millionth server seed, and each game after that works backwards down the list". The public side: "We commit to the hash of a crypto block before that block is mined, and we create all the server seed hashes before committing to this block."
For Roulette the commitment was posted on Pastebin under the title "Thursday 9th of July 2026 08:53:48 AM CDT": "Roulette seeding event! Our 2 millionth hash is fc217c2d556178088b101be97a990bf2dd9551805e2221fc1992ce3d8ce87a66. The client seed will be the hash of the un-mined Ethereum block 25495450". The verifier linked from the fairness page then computes a round like this:
hash = HMAC-SHA256(key = round hash, message = salt)
result = (first 13 hex characters of hash, as a number) mod 15
0 → "14x Green" 7 or 8 → "7x Bait" 1 to 7 → "2x Red" 8 to 14 → "2x Black"
previous round hash = SHA-256(round hash)
Thirteen hex characters are 52 bits, a number up to about 4.5 quadrillion, and taking it modulo 15 spreads it over the tiles with a bias far too small to matter. The salt in the verifier is 0x81389d8ff7885dd023668676c1a67afbe2bfafd70ae6f3de218fa2e725e0e01f.
To check a round:
- Copy the round's hash from the game once the round has finished.
- Open the Roulette verifier from Roobet's fairness page ("Verify Results") and paste the hash. It prints the result for that round and for the 100 rounds before it, each derived by hashing the one after.
- Compare the list with the game's own history. A matching run of 100 shows those rounds sit on one chain.
- To tie the chain to the commitment you would keep hashing back to the 2 millionth hash in the seeding post. On 12 Nov 2026 the public round data showed the chain at round 443,888.
Our own tools do not cover this game. The roulette verifier reproduces 37-pocket wheels on Stake and Shuffle, and the Roobet seed checker performs the seed-commitment check for Roobet's seed-pair games such as Dice and Mines; neither computes a Roobet Roulette result. Use Roobet's verifier for that. The roulette calculator is also built for 37- and 38-pocket wheels and does not apply here.
Live-dealer roulette at Roobet
Roobet's lobby also carries studio roulette tables. Those are conventional wheels with their own rules: 37 pockets and a 2.70% edge with one zero, 38 pockets and 5.26% with two. They are not part of the hash chain and cannot be recomputed. Check the number of green pockets and the paytable in the table's rules before betting, and do not carry the numbers on this page over to them.
Roobet's wheel against Stake, Shuffle and Gamdom
| Roobet | Stake | Shuffle | Gamdom | |
|---|---|---|---|---|
| Game | 15-tile colour wheel | 37-pocket European wheel | 37-pocket European wheel | 101-number colour wheel |
| Even-money bet wins on | 7 of 15 tiles | 18 of 37 pockets | 18 of 37 pockets | 50 of 101 numbers |
| Return on that bet | 93.33% | 97.30% | 97.30% | 99.01% |
| Cost per $100 wagered | $6.67 | $2.70 | $2.70 | $0.99 |
| Long shot | Green 14x at 1 in 15 | Single number 35:1 at 1 in 37 | Single number 35:1 at 1 in 37 | Green at 1 in 101 |
| Stated RTP | None | 97.30% | 97.30% | 99% after the first $5,000 of daily Originals wagering |
| Round | Shared, hash chain | Private spin, your seeds | Private spin, your seeds | Shared, hash chain |
Stake: fairness documentation and game page, 1 Nov 2026. Shuffle: game page and help centre, 12 Nov 2026. Gamdom: verifier code and help centre, 12 Nov 2026. Returns are arithmetic from each game’s payouts.
Of the four games called roulette on these sites, Roobet's takes the most from each bet by a wide margin: two and a half times the cost of the European wheels and nearly seven times Gamdom's colour wheel. The format, a quick shared round with a jackpot, is the attraction; the price is in the table.
Sources: Roobet help centre, Triple Roo Jackpot and Roobet House Games (12 Nov 2026); Roobet fairness page and the Roulette verifier it links (12 Nov 2026); Roulette seeding post (9 Jul 2026); Roobet Roulette game page (1 Nov 2026) and public game settings (12 Nov 2026). Returns, streak chances and hourly cost are our arithmetic from those figures.
Licence, KYC, withdrawals and bonus terms are in the Roobet review.