The catalogue divides into two layers that differ fundamentally in ownership, mathematics and verification method: in-house games the platform developed itself, running on verifiable provable fairness, and external content from global studios operating on the same terms available to any other operator. Conflating the two layers is the source of most of the confusion in published coverage of the platform, and separating them is the logic this page is built on.
The eleven in-house games
This is the layer that exists nowhere else. Games built internally rather than licensed clones under a new label, all running at 100% return within the daily allowance of $50,000 in wagers capped at $1,000 per bet; once the allowance is exhausted the return falls to 99.9%.
| Game | Type | Return to player | Zero Edge |
|---|---|---|---|
| Crash | Escalating multiplayer multiplier | 100% | Covered |
| Dice | Numeric range prediction | 100% | Covered |
| Plinko | Probabilistic ball path | 100% | Covered |
| Mines | Sequential tile reveal | 100% | Covered |
| Blackjack | Cards against the dealer | 100% | Covered |
| Keno | Number draw | 100% | Covered |
| Video Poker | Single-player poker | 100% | Covered |
| Castle Roulette | Roulette in live format | 100% | Covered |
| Rock Paper Scissors | Three-way outcome contest | 100% | Covered |
| Groomer's Van | Slot built by the platform | 100% | Covered |
| Beef | Escalating-risk crossing game | 99.2% | Exception |
Correcting a widely repeated figure. Several Arabic-language reviews still state that the in-house catalogue holds five games. That number was correct at an earlier stage and the platform has since passed it by six titles. The list above is current as of August 2026.
Crash
A multiplier climbs from 1.00 until it stops at a random moment, and the player's task is to exit before it does. It is a shared round in which everyone sees each other's decisions in real time — which makes it the title most exposed to impulsive decisions, since watching another player hold past your planned exit point exerts real pressure to delay.
Dice
Mathematically the simplest format: the player sets the winning range, and the success probability and multiplier are derived automatically in exact inverse relation. Full transparency of the odds makes it the clearest way to understand the zero-edge principle in practice.
Plinko
A ball falls through a peg grid until it settles in a multiplier slot. Risk level and row count are selectable, which reshapes the distribution: more rows concentrate outcomes toward the centre while raising the ceiling at the edges.
Mines
A grid of tiles, some mined, with every successful reveal raising the multiplier. The only genuine decision is when to stop, and the probability of loss escalates with each additional tile.
Blackjack and Video Poker
The only two formats on the list whose outcome is influenced by player decisions rather than chance alone. The stated return assumes optimal strategy; decisions short of that lower the effective return.
Castle Roulette
A live product developed by the platform itself, which is unusual — most operators rely exclusively on Evolution tables. It combines the live roulette format with the Zero Edge rules.
Verifying fairness inside the game interface
The in-house games run on a provable fairness system built from server seed, client seed and nonce passed through SHA-256, with the decentralised drand beacon used specifically in Crash. The full mathematical explanation sits in the provable fairness section of the main review; what concerns us here is where it lives on screen.
- The verification icon appears inside each in-house game interface, not in account settings.
- The tab shows the server seed hash before the round begins — this is the advance commitment that prevents later alteration.
- The client seed can be changed manually at any time, and it is the player's real guarantee: changing it means the server did not know the complete input in advance.
- After the round the server seed is revealed, allowing the result to be recomputed with any public hashing tool and compared against what was displayed.
This mechanism covers the eleven in-house games only. Slots and live tables from external studios run inside embedded frames on the providers' servers and fall under their auditing, not this system. Any description applying provable fairness to "all games on the site" is technically inaccurate.
The live casino
The section relies on Evolution and Pragmatic Play Live, the two largest studios in this field worldwide. Streaming is in high definition from real studios with human dealers and text interaction available.
| Game | Provider | Table count | Note on limits |
|---|---|---|---|
| Live Blackjack | Evolution and Pragmatic Play Live | More than 100 | Graduated limits from low stakes to high-roller tables |
| The platform's own live blackjack | Built in-house | Dedicated table | 60% rakeback — the highest on the site |
| Live Roulette | Evolution and Pragmatic Play Live | Wide selection | Includes Lightning Roulette and Mega Roulette |
| Live Baccarat | Evolution | Multiple tables | Includes Baccarat A formats and lobbies |
| Asian tables | Evolution | Available | Sic Bo, Teen Patti, Dragon Tiger, Andar Bahar, Fan Tan |
The platform's own table deserves a pause: rakeback there is 60% rather than 50%, the highest on the site. That does not automatically make it the cheapest option, however — effective cost is the product of the table's edge and the rakeback rate, and a table with a higher edge and 60% rakeback can cost more than one with a lower edge and 50%. The comparison should be run on net edge after rakeback, not on the rakeback percentage alone.
The live section is the heaviest data consumer on the site, being continuous video. Playing over mobile data uses several times what slots consume.
Live game shows
A hybrid category between casino game and television quiz format, with a human host, wheels and bonus stages. Names are given in their original Latin form because that is how they appear in the interface:
- Crazy Time — the best known in the category, a main wheel with four bonus rounds.
- Monopoly Live — a wheel leading into an augmented-reality 3D bonus round.
- Mega Wheel and Dream Catcher — multiplier wheels in live format with straightforward rules.
- Sweet Bonanza Candyland — a live format built on the world of the well-known slot.
- Snakes & Ladders Live and Marble Race — race and track-progression formats.
- Crazy Pachinko, Crazy Balls and Lightning Storm — random multiplier formats with heavy visual production.
Digital table games
Alongside the live tables there are digital versions running on a random number generator with no human dealer: Blackjack, Roulette, Baccarat, poker and bingo. The difference between them and live tables is frequently confused despite being fundamental:
The digital table
Outcomes are generated by an algorithm. There is no waiting for other players or for the dealer's cycle, so the pace of play is far quicker. Minimum stakes are usually lower. That faster pace means more rounds in the same period, which is to say a higher cumulative wager volume than the player perceives.
The live table
Outcomes come from physical cards and wheels in front of a camera. The pace is slower by the human nature of the round and the minimum stake is generally higher. A social dimension is present through the dealer and the chat.
Sports betting and esports
The sports section is an integral part of the platform rather than a peripheral addition. It covers more than 50 sports, including 17 esports titles with in-play coverage, and more than 1,000 daily football events spanning the UEFA Champions League, the English Premier League, La Liga and the Bundesliga.
| Sport | Daily coverage | Market types |
|---|---|---|
| Football | More than 1,000 events | Match winner, total goals, side markets, outrights, in-play |
| Basketball, tennis, baseball | Broad daily coverage | Winner, handicap, totals, in-play |
| Esports | 17 titles including CS2, Dota 2 and League of Legends | Winner, maps, in-match markets |
| Other sports | Ice hockey, cricket, MMA, darts, horse racing, table tennis | Core markets |
The margin is the number that matters most to a regular bettor: the share the book retains from every dollar staked, the mathematical equivalent of the house edge in a casino. The lower the margin, the better the odds offered to the player. Published measurements on English Premier League match-winner markets place the margin between 1.5% and 2.0%, which is low by market standards. The figure applies to major markets specifically, though: margins on side markets and lesser leagues are typically higher, and a fair comparison runs on the same market across different operators.
The strong esports presence is not accidental but an extension of the founder's background, having built the CSGOEmpire Counter-Strike betting platform in 2016. Available features include live streaming, early cash-out, live statistics and match tracking.
Frequently asked questions
How many in-house games does Duel have?
Eleven: Crash, Dice, Plinko, Mines, Blackjack, Keno, Video Poker, Castle Roulette, Rock Paper Scissors, Groomer's Van and Beef. All run at 100% return within the Zero Edge allowance except Beef at 99.2%. Reviews stating five titles are relaying outdated data.
Does Duel offer a live casino with real dealers?
Yes. More than 100 blackjack tables plus roulette, baccarat and Asian tables, streamed in high definition from Evolution and Pragmatic Play Live studios. There is also a live blackjack table built by the platform itself carrying 60% rakeback.
How can a player verify game fairness independently?
Through the verification icon inside each in-house game interface: copy the server seed hash shown before the round, record the manually changeable client seed and the nonce. Once the server seed is revealed after the round, pass the triplet through SHA-256 with any public hashing tool and compare the output with the displayed result. Crash uses the decentralised drand beacon instead of a server seed. The mechanism covers in-house games only.
Are bets on Duel real or simulated?
The live bet feed on the site displays real-money wagers rather than demo balances, and this is a stated part of the brand's position. It does not necessarily extend to what is shown on external streaming channels run by independent creators, which fall outside what the platform or this review can confirm.
Can football be bet on at Duel?
Yes, with more than 1,000 daily events covering the Champions League, the English Premier League, La Liga and the Bundesliga, offering pre-match and in-play markets with early cash-out. Measured margin on English Premier League match-winner markets sits between 1.5% and 2.0%.