Duel runs 41 roulette tables, mostly third-party RNG wheels and live dealers, paid in crypto. They look interchangeable in the lobby. They are not. The house edge on the worst table is almost four times the edge on the best one, and the only visible difference is a word in the title.
There is also one wheel on Duel that is nothing like the others: Castle Roulette, Duel’s own game, at 0% edge inside the daily allowance. More on that at the end.
The price of each wheel
| Table | RTP | House edge | Cost per $100 bet |
|---|---|---|---|
| French Roulette Gold | 98.65% | 1.35% | $1.35 |
| Mega Roulette | 97.50% | 2.50% | $2.50 |
| Auto-Roulette (European) | 97.30% | 2.70% | $2.70 |
| American Roulette | 94.74% | 5.26% | $5.26 |
RTPs from Duel’s own game catalogue. Duel’s 50% rakeback halves every edge but keeps the ratio between them.
The American table adds a second zero, a 38th pocket, without changing a single payout. That takes the edge from 2.70% to 5.26%. Same bets, same pace, roughly double the cost of a European wheel and four times the French one. There is no upside to make up for it. Skip it.
Inside or outside bets: same price, different ride
Common wisdom says outside bets (red, black, odd, even) are the “safe” choice. On how it feels, sure. On cost, no. On a single-zero wheel a straight-up number pays 35:1 and lands 1 time in 37. Red pays 1:1 and lands 18 times in 37. Both return 36/37 of your money on average, a 2.70% edge.
The only exception is French rules with la partage: when the ball lands on zero, even-money bets get half the stake back. That cuts the edge on red/black, odd/even and high/low to 1.35%, while straight-ups stay at 2.70%. On a French wheel, and only there, outside bets are actually cheaper.
So the whole strategy fits in one line: French wheel, even-money bets, a limit you set before the first spin.
Martingale on a roulette table
Double after every loss, the first win gets it all back. Until the table limit says no. Start at $1 on red with a $500 maximum bet and nine losses in a row puts your next bet at $512, over the limit, with $511 already gone. Nine straight losses on red happen about once in every 400 sequences. Play enough sequences and you will meet it.
Martingale does not move the edge by a fraction of a point. It swaps a slow, visible drain for a rare, enormous one.
Live or RNG?
Live roulette gives you a real wheel, a dealer and a slower pace. RNG wheels are faster, which means more spins per hour and more total edge paid per hour. Neither is provably fair in the seed-and-hash sense; they use the providers’ certified systems. Both get 50% of their edge back as instant rakeback on Duel. The full live floor is in our live casino guide.
The one wheel at 0% edge
Castle Roulette is not roulette in the 37-pocket sense. It is Duel’s own wheel with six multipliers, 2x to 48x, each landing with probability one divided by its payout. Inside the daily Zero Edge allowance ($50,000 in wagers, $1,000 max bet) the house edge is 0%, and every spin can be verified. You can watch it live on our live streams page.
If you came for roulette and care about the maths, that is the table. If you want the classic layout, sit at French Roulette Gold. Either way, decide your budget first. Our responsible gambling page has the tools.
FAQ
Among classic wheels, French Roulette Gold at 98.65% RTP (1.35% edge on even-money bets). Duel’s own Castle Roulette runs at 0% edge inside the daily Zero Edge allowance.
Yes. The extra double zero raises the edge to 5.26%, roughly double a European wheel and four times the French one, with no change in payouts.
No. On a single-zero wheel they carry the same 2.70% edge. Only French la partage makes even-money bets cheaper.
Castle Roulette is. Third-party RNG and live roulette tables use the providers’ certified systems instead.
Yes, 50% of the house edge on third-party roulette, paid instantly.