What Are JB.COM Originals?
JB.COM Originals are proprietary in-house crypto games built by the platform’s internal team, operating on Provably Fair mechanics where outcomes are mathematically predetermined and publicly auditable. The house edge on Crash is a fixed 1%, with the full transparent algorithm disclosed to every user. All JB.COM Original titles share a unified account balance across the casino and sportsbook, with the complete hash chain published on GitHub for independent audit.
Full List of JB Casino Original Games
JB Casino Original titles currently cover 9 Provably Fair games, each with distinct mechanics and player-controlled variables built on the same blockchain verification infrastructure.
| Game | Primary Player Control | Wagering Contribution |
|---|---|---|
| Crash | Auto or manual cash-out timing | 5% |
| Plinko | Risk level (low / medium / high) + row count | 5% |
| Dice | Win probability slider (adjustable range) | 5% |
| Mines | Number of active mines per round (1–24) | 5% |
| Limbo | Target multiplier input before bet | 5% |
| Keno | Number selection before draw | 5% |
| Hilo | Higher or lower card prediction | 5% |
| Video Poker | Hold and discard card selection | 5% |
| Arcade | Varies by format | 5% |
All nine formats launch via HTML5 directly in the browser, with no additional software installation required.
Crash – Ride the Multiplier Before It Crashes
Crash is the flagship JB Original at JB.COM and the most structurally transparent multiplier game on the platform. The crash point is determined by the hash chain before the round starts, with a fixed 1% house edge calculated via the disclosed formula 99/(1−X), where X is extracted from a 13-character hexadecimal hash. The probability of a 1.00x crash is exactly 1% per round. The game supports both manual and auto cash-out, letting bettors define a target multiplier in advance and apply a consistent approach across sessions.
Plinko – Drop the Ball, Win Big
Plinko is a ball-drop crypto game where the result is fixed by the Provably Fair hash chain before the ball visually begins to fall. The multiplier distribution shifts based on the risk level selected before each drop: low risk clusters values toward the center, high risk pushes substantially higher multipliers to edge positions. Row count is configurable, with more rows producing a wider spread across bottom slots.

Dice, Mines, and Limbo
Dice is a probability-slider game where the payout multiplier updates in real time before any bet is confirmed. Mines presents a grid where the bettor selects how many mines to activate from 1 up to 24, then reveals safe cells one at a time, with each successful reveal multiplying the running prize. Limbo requires a single input: set a target multiplier, confirm the stake, and the round wins at exactly that multiplier if the result meets or exceeds it. All three Provably Fair formats share the same hash chain and produce no variation outside the published algorithm.
Keno, Hilo, and Video Poker
Keno is a number-draw format where payouts scale based on how many chosen numbers match the result. Hilo is a card-prediction game where correct higher-or-lower calls chain into growing multipliers, while a wrong call forfeits the accumulated win. Video Poker follows standard five-card draw rules, with winnings based on the final hand ranking. All three titles use the same Provably Fair blockchain infrastructure as the rest of the JB Original lineup.
How Provably Fair Works in JB Casino Originals
JB Casino Originals run on a pre-committed chain of exactly 10,000,000 SHA-256 hashes generated before any title went live. Each hash corresponds to one specific round outcome, the chain runs in reverse order, and each entry is mathematically derived from the one that follows it. Any retroactive alteration breaks the derivation at that point and becomes immediately detectable by anyone running independent hash chain verification via the publicly hosted GitHub repository.
Blockchain Mechanics and SHA-256 Verification
JB.COM Originals use SHA-256, the same cryptographic standard securing Bitcoin transactions, as the engine for pre-committing every round outcome. A single character change in the input produces a completely different 64-character hexadecimal output, making retroactive manipulation mathematically detectable and forming the technical foundation of the entire Provably Fair blockchain casino system.
| Technical Parameter | Specification |
|---|---|
| Algorithm standard | SHA-256 (same as Bitcoin transaction hashing) |
| Total pre-generated hashes | 10,000,000 |
| Input used for Crash result | First 13 characters of the round hash |
| Crash calculation formula | 99 ÷ (1 − X), where X is extracted from the hex |
| Minimum Crash result | 1.00x (all values below rounded up) |
| Public audit repository | GitHub (full chain published before platform launch) |
To manually verify a Crash outcome, extract the numerical value from the first 13 characters of the round hash, apply the formula, and compare the output with the recorded result in the public chain.
Betting Mechanics and Strategy Tips for JB Originals
JB Original titles support flexible bet sizing with a platform-wide minimum deposit of $5. All JB Originals contribute 5% toward wagering requirements compared to 50–100% for third-party slots, so users focused on bonus clearance should factor this into session planning. The maximum bet while any active bonus is running is $5 per round across every title.

The key mechanics to review before placing your first bet on any JB Original are as follows:
- Set Crash auto cash-out to a fixed multiplier before each round to eliminate in-session timing pressure and apply a repeatable strategy.
- In Mines, higher active mine counts produce steeper multiplier growth per safe reveal but increase risk proportionally with each cell uncovered.
- In Dice, the payout multiplier recalculates in real time as the probability slider moves, so the exact return at any threshold is visible before confirming.
- In Limbo, lower targets win more frequently while higher targets are rarer but return proportionally more per winning round.
- In Plinko, the risk level set before each drop directly determines the multiplier distribution across bottom slots for that round.
Bonuses and Promotions Available on JB Originals
JB Casino Originals are fully eligible for the platform’s major bonus programs. New users receive a no-deposit bonus of 60 free spins, 20 per day for three days after registration, with a 60x wagering requirement and a maximum withdrawal of $5 per every 5 spins. The welcome bonus covers the first four deposits, each capped at 45,460 UAH: 120% + 100 FS, 100% + 100 FS, 80% + 100 FS, and 80% + 100 FS respectively.
The Rakeback program adds 180% on the first deposit, rising to 300% if registration is completed within the first 7 minutes, then 240%, 300%, and 360% on subsequent deposits, up to $100,000 total. The bonus unlocks via stake × 1% × 20%, claimable every 24 hours. The Reload bonus rewards 7 consecutive days of activity:
| VIP Level | Weekly Wager Range | Reload Bonus Rate |
|---|---|---|
| Base | $1,000 – $49,999 | 10% |
| Super | $50,000 – $199,999 | 12% |
| Mega | $200,000 – $499,999 | 14% |
| Epic | $500,000+ | 16% |
JB Casino also runs daily bonuses, level-up rewards, and periodic prize draws for active players across all platform sections.
Responsible Gaming When Playing JB Originals
JB Originals are available exclusively to users aged 18 and above, with age verification completed at registration. JB.COM operates under Curaçao Gaming Authority licence OGL/2024/1519/0809, issued to Zozo Technology B.V. (registration number 165255). Available responsible gambling tools include deposit limits at daily, weekly, or monthly intervals; loss and stake limits; time-outs of 24 hours, 7 days, 1 month, or 3 months; and self-exclusion periods of 1, 3, 5, or 10 years, or permanent exclusion.
Self-exclusion activates immediately, blocks all platform access for the full selected period, and prohibits re-registration throughout. Responsible gaming queries go to rg@jb.com, complaints to complaints@jb.com, and external support through Gambling Therapy at gamblingtherapy.org and GamCare at gamcare.org.uk.