📖 Glossary

Duel Glossary:
30 Terms Defined

Complete definitions for every term used in the Duel VIP, rewards, and crypto casino ecosystem.

A return paid under Duel's rewards system. Not gated by a VIP level — Duel has no Bronze-to-Elite ladder. Headline slot rakeback is 50% for every player.
A temporary boost to a player's rakeback rate on Duel Originals. Since Originals have 0% house edge, Enhanced Rakeback creates mathematically positive expected value.
A loyalty rank used by other casinos (Bronze through Elite). Duel does not have VIP levels. Rakeback is not unlocked by ranking up. See the VIP levels guide for the full explanation.
The percentage of wagered money a game returns to players over time. Duel Originals have 100% RTP (0% house edge). Standard casino slots have 94–96% RTP.
The casino's mathematical advantage built into game payout structures. Expressed as 100% minus RTP. Duel Originals have 0% house edge — no mathematical advantage for the casino.
The average expected outcome per wager over many repetitions. Positive EV means expected profit over time. Duel Originals with any rakeback always have positive EV.
A cryptographic system allowing players to independently verify game outcomes were not manipulated. Uses server seed, client seed, and nonce — all verifiable after each round.
Server Seed
A random string generated by Duel before each game round, hashed with SHA-256 and committed to the player. Revealed after the round for verification.
Client Seed
A random value provided by the player that contributes to game outcome determination, ensuring the casino cannot predetermine results.
Nonce
A number used once that increments with each game round using the same seed pair, creating unique outcomes for every round.
Wagering Requirement
A playthrough requirement specifying how many times a bonus must be wagered before withdrawal. Standard Duel rakeback has NO wagering requirements.
Proprietary games developed exclusively by Duel with 0% house edge (100% RTP) and provably fair outcomes. Includes Crash, Mines, Plinko, Dice, Blackjack, Roulette, and Tower.
A Duel Original game where a multiplier climbs from 1x until it randomly crashes. Players must cash out before the crash to win.
A Duel Original game where players reveal tiles on a grid containing gems and mines, with multipliers increasing with each safe reveal.
A Duel Original where balls drop through pegs to land in multiplier slots. Risk levels and row counts determine distribution.
A simple Duel Original where players predict if a random number is above/below a set threshold. Fully adjustable win probability.
A competitive ranking of players by wagering volume over a period. Prize pools go to top-ranked players. Duel does not use a published VIP-level multiplier.
On many casinos, a VIP-tier boost to leaderboard score. Duel has no VIP levels and no published VIP-tier leaderboard multiplier.
Stablecoin
A cryptocurrency pegged to a stable asset like the US dollar. USDT and USDC are popular stablecoins on Duel — their value remains ~$1 regardless of crypto market movements.
The original and most widely held cryptocurrency. Supported for Duel deposits and withdrawals. Slower confirmation times (~10–60 min) vs newer networks.
The second-largest cryptocurrency and smart contract platform. Duel accepts ETH and ERC-20 tokens including USDT and USDC.
The world's largest stablecoin, pegged to $1 USD. One of the most popular deposit options on Duel due to price stability.
A regulated stablecoin by Circle, pegged to $1 USD. Available on Solana (fast) and Ethereum on Duel.
A fast, low-fee blockchain. Solana-based deposits on Duel confirm in ~30 seconds — the fastest available option.
A responsible gambling tool that temporarily or permanently suspends a player's account. Available through Duel's responsible gambling settings.
Cashback
A reward based on net losses over a period. Distinct from rakeback — cashback only pays when you lose. Duel uses volume-based rakeback, which is significantly more valuable.
A cryptographic hash function used in Duel's provably fair system. One-way: cannot determine the input from the hash, making pre-commitment manipulation impossible.
On typical casinos, a host unlocked at high VIP levels. Duel does not publish a Platinum+ host as part of a VIP-level ladder, because that ladder does not exist.
The maximum amount a player can withdraw in a given time period. Duel does not publish higher limits as a VIP-level perk, because Duel has no VIP levels.
A responsible gambling tool limiting deposits per day/week/month. Set voluntarily in account settings or required for compliance.
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