The climb is the player's
A round opens at 1.00× and moves only when the page is turned. The next rung is on screen before it is bought, so the decision is made with the number in view.
Crashbook Christmas Edition
Turn the page by the fire
The Christmas Edition is Crashbook with its Christmas season switched on. The reading room, the chrome, the bet panel, the jackpot, the book and the music are all dressed for the holidays; the round, the controls and the mathematics are the game's own.
About the game
The same book, by the fire
Christmas sits on top of Crashbook and dresses everything the player looks at — the reading room behind the book, the chrome and the bet panel around it, the jackpot plate, and the book itself, which opens and turns its pages on a Christmas cover. The music changes with it, and the track a player picks at Christmas is remembered apart from the one they play the rest of the year.
Nothing a player bets on changes. The layout, the controls and the round are the ones in the standard game, and the figures below are Crashbook's own, from the same audit — the season is drawn on the screen, not in the mathematics.
An operator switches the season on per launch, with christmasMode=true on the game's launch, and off by leaving it out; the player has no switch for it. It is one integration either way, so Christmas can go live in December and come down in January without a new build.
The mathematics
What the game is set to pay
Derived independently of the engine, then measured against it. The audit that produced these figures is reproducible in the game's own repository.
Return to player
97.00%
Target · derived 97.01% · 12.65M rounds simulated
Multiplier range
1.01× – 300×
Floor clamp to ceiling
Page turn
+0.05 – 0.14
Drawn when the turn is taken
Jackpot
Pooled, rolled at 50×
0.10% of every stake · one roll in fifty
Round
Player-paced
No shared timer, no round to catch
Randomness
Kernel CSPRNG
Nothing on a money path uses Math.random
In-house audit, not a test-house certificate. Stake limits, payout caps and the opening value of a jackpot pool are set by the operator and sit outside the audited mathematics — we will walk you and your certification body through both.
Features
What Crashbook Christmas Edition brings to a lobby
What the title gives a lobby, and what it asks of the platform behind it.
Cash out, or turn again
Two buttons and one question, answered in about a second. Short rounds that resolve the instant the player acts, and invite the next one.
A jackpot on a single rung
Every stake feeds one pool per operator. A climb that lands exactly on 50× rolls for the lot — roughly one round in 2,582 — without touching how that round itself settles.
Mathematics you can check
77 checks, an independent closed-form derivation and 12,650,000 simulated rounds, regenerated from scratch by one command in the game's own repository.
Built for imperfect connections
Rounds are keyed and settled once. A dropped socket, a reload or a duplicate tap resumes the round that was paid for rather than buying another.
Seamless wallet, four ways in
One ledger behind a REST seamless wallet, a flat bet/win/rollback interface, SoftGaming and GAP — with a launch hub that hands the session to the game.
Game preview
A look at the game
Captured from the live build — the same one the demo above opens.
Christmas on Crashbook
Play the Christmas Edition, then talk to our team about switching the season on for your players — and when to switch it off.