Duelbits Originals: the in-house games, provably fair and the Round ID

The in-house games Duelbits names

Source: Duelbits' help centre, as archived on 24 January 2024, its blog as archived on 3 June 2026, and page addresses on duelbits.com as archived by the Wayback Machine on the dates shown.

A page address proves only that Duelbits had a page by that name on that date. A catalogue page at /en/originals/all was archived on 3 August 2025, and the site's code, as archived on 3 June 2026, lists Originals entries for Blackjack, Hilo, Keno, Scratchcards and an instant lottery beside the games above. Tap Trading is the one in-house game we saw ourselves, as a sidebar entry marked NEW on the public front page we captured on 26 August 2026.

What each game is, in general terms

Duelbits' full game rules were not archived, so the notes below describe how games of each type usually work at crypto casinos, with the Duelbits details its interface files add, each dated.

• Crash. A multiplier starts at 1× and climbs until it stops at a random point. Cash out before the stop and you win your stake times the multiplier reached; stay in past it and the stake is lost. Duelbits' interface file of 18 April 2022 shows a “50,000 Max Profit” label on Crash.
• Dice. You choose a target number and bet whether the roll lands over or under it. The less likely the outcome you pick, the more it pays. The 2022 file lists four Duelbits modes: Roll Over, Roll Under, Roll Between and Roll Outside.
• Plinko. A ball drops through rows of pegs and lands in a slot at the bottom that carries a multiplier. Riskier settings spread the multipliers further apart.
• Mines. A grid hides a number of mines. Each safe tile you reveal raises the multiplier, you can cash out between picks, and a mine ends the round.
• Roulette. A wheel with numbered pockets; you bet on a number, a group of numbers or a colour. The 2022 file shows an “Enable CS:GO Mode” switch on Duelbits' version.
• Predict. Duelbits' blog introduced it in a post dated 9 December 2025 as “a global prediction market platform where you can trade outcomes on sports, politics, crypto, entertainment, and more”. Its market rules were not archived.
• Dice Duels, duel poker and tap trading. The documents we read give no rules for these three. A 2024 message sets the minimum duel bet at 0.10 coins, and the fairness notes below cover Dice Duels and Duel Poker.

Every one of them has a house edge

Each game above is built so that, over many rounds, the casino keeps a share of what is staked. That share is the house edge. Duelbits' own help centre uses the term: its article on the affiliate programme, as archived on 14 August 2025, refers to “the mathematical house edge on any wagers”. The 2022 interface file shows a “House Edge” label on the Originals pages, but the figure was filled in live, and no archived text prints an edge for any single Duelbits game.

That settles what to make of any Crash or Mines system. Changing the target, the number of mines or the moment you cash out changes how often you win and how much each win pays; the edge stays underneath all of it. A tool that claims to see a result before the game shows it promises exactly what a fair game is built to prevent. We publish no systems of any kind. The one plan that holds up is a bankroll limit set before you start, and stopping when you reach it. Duelbits' 2022 autobet had Stop on Loss and Stop on Profit settings on Crash, Dice and Mines, which put that limit into the game itself.

Provably fair, in Duelbits' own words

The January 2024 welcome article opens by calling Duelbits “a provably fair casino”. Its fairness pages, archived in January and August 2025, hold only an empty app shell, and the help centre, as archived on 14 August 2025, lists an article titled “Is Duelbits Provably Fair?” whose body was not archived. The method itself survives in Duelbits' interface text, as archived on 2 June 2023:

• Dice and Plinko. Each result is generated “based on your server seed, client seed and nonce”. The server seed is “a SHA-256 hash of 16 cryptographically secure random bytes” and “can be cycled by the user at any time”; the client seed is limited to 64 characters.
• Crash. Duelbits hashes a genesis seed with SHA-256 “to generate 5 million Server Seeds”.
• Dice Duels. EOS blocks feed the algorithm, so that, in Duelbits' words, “there is no way for us to have knowledge about the winning tickets”.
• Roulette and Duel Poker. Duelbits publishes a SHA-256 hash of each day's server seed and reveals the seed itself at the end of the day.

The 2022 bet history shows the same idea from the player's side: Crash and Dice rounds list a server seed and a public seed. Stake.us describes a similar scheme in an article dated 13 September 2024. A check like that tells you a round was fixed before your bet. It leaves the house edge exactly where it was.

How to find a Round ID

When a round looks wrong, the reference that matters is its ID. Duelbits' help centre, as archived on 15 May 2025, says support may ask for your bet ID and gives three steps:

1. Click your user name at the top right of the page.
2. Click Transactions.
3. Choose the round, double-click below the ID column and copy the Round ID.

Note the time and amount of the bet alongside it.

Where else in-house games run

Source: operators' own pages and the Curaçao certificate portal, on the dates given.

Shuffle has the closest in-house row: Dice, Mines, Keno, Limbo, Plinko and Blackjack open its lobby, three of them sharing a name with Duelbits' list, and a sportsbook sits in the same account. Its licence, Curaçao OGL/2024/1337/0628 held by Natural Nine B.V., read Active on 8 September 2026, and its terms require ID before the first withdrawal (clause 5.2). The full comparison is on Duelbits vs Shuffle.

Stake runs six originals: Plinko, Mines, Limbo, Dice, Hilo and Crash, four of which share a name with Duelbits' list. Its licence, OGL/2024/1451/0918 held by Medium Rare N.V., read Active on 26 August 2026, and clause 4.8 of its terms ties withdrawals to identity checks. See Duelbits vs Stake.

TrustDice is built around dice, the game it is named after, and runs other originals beside a sportsbook, under Curaçao licence OGL/2024/664/0280, Active on 26 August 2026. It is one of the two casinos we have tested with our own money: in May 2026 crypto withdrawals arrived in 10 to 15 minutes each, with no ID until they reached about 5,000 USDT in total. Then came a review, a Veriff link, a passport that passed on the fifth attempt and a second request by email.

Vave, our advertiser, has no in-house row in our records; it suits a player who cares more about the cashier than about Crash. On 28 August 2026 we deposited, played and withdrew there, and no ID was requested up to 5,000 USDT.

Open Vave

Our list of crypto casinos like Duelbits adds sportsbooks and rakeback schemes to the comparison. The studio side of the Duelbits lobby is covered on Duelbits casino.