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Clear, honest explanations of how each game works: the rules, the house edge, the maths behind the payouts and the mistakes that quietly cost players money. No systems, no guaranteed wins.
8 articles in this category
Duel.com offers in-house Duel Originals — Crash, Dice, Plinko, Mines, Blackjack, Coinflip, Jackpot, Castle Roulette and Beef — plus thousands of third-party slots and live dealer tables from external studios. Originals are provably fair and run at 100% RTP within the daily zero-edge allowance; third-party games run at the provider's certified RTP with 50% rakeback on the house edge.
They describe the same maths from opposite angles. House edge is what the operator keeps; RTP is what the game pays back. A 97% RTP title has a 3% house edge. If you wager 10,000 total on that game, the expected long-run cost is roughly 300 — spread across many bets, not taken in one lump.
Each round starts at 1.00× and the multiplier increases until the game crashes at a randomly determined point. You place a bet before the round begins and choose when to cash out. If you cash out at 2.50×, you receive 2.5 times your stake. If the game crashes before you cash out, you lose the stake.
Use the slider or input field to choose your win probability — for example, 50% for a coin-flip equivalent or 25% for a longer-shot bet. The interface displays the payout multiplier that corresponds to that probability, and you choose whether the roll must land over or under the threshold. Adjust until you understand the trade-off between hit rate and payout size.
You choose how many mines to hide on the grid, place a bet, then click tiles to reveal gems or mines. Each safe tile increases your payout multiplier. Hit a mine and you lose the stake. You can cash out after any number of safe reveals to lock in the current multiplier — the decision of when to stop is the whole game.
You select a row count and risk level, place a bet, and release a ball that bounces through pegs into a payout slot at the bottom. Each slot has a multiplier and the slot the ball lands in determines your payout. Results are provably fair — the path is fixed by the seeds before the drop, and the animation only replays it.
The core rules are standard: beat the dealer with a total closer to 21 without busting; face cards count 10, aces 1 or 11; you can hit, stand, double or split. Duel's Zero Edge variant adjusts specific rules and payouts so correct basic strategy yields about 0% house edge — read the in-game rules panel, because the settings differ from a typical table.
Check the game lobby for available variants. Most crypto casinos offer single-zero (European-style) roulette with 37 pockets numbered 0–36. If a double-zero (American) variant exists, the house edge roughly doubles on most bets. Always confirm which wheel you are playing.
Enter DUELHELP during registration to unlock 50% instant rakeback and permanent access to 100% RTP Duel Originals.
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