Bubble Craps - Apex Games

Provably Fair

Every roll's dice come from HMAC-SHA256(serverSeed, clientSeed:nonce) — decided the instant you shoot, before the 3D dice animate. The hash below commits the server to its seed in advance. Rotate your seed pair anytime to reveal the old server seed and verify past rolls.

Your Seed Pair

Server seed (SHA-256 hash)

—

Client seed

—

Nonce (rolls with this pair)

0

New client seed (optional, used on rotate)

How to verify a roll

After rotating, compute roundSeed = HMAC-SHA256(revealedServerSeed, clientSeed + ":" + nonce) (hex). Then hash SHA-256(roundSeed + ":0"), read the first two big-endian uint32s, divide each by 2^32 → two floats. Each die is 1 + floor(float × 6). Any online HMAC/SHA-256 tool reproduces it.

Recent rolls

No rolls yet this session.

Craps Rules

How a Round Works

Each round has two phases. On the come-out roll, a 7 or 11 ("natural") and a 2/3/12 ("craps") resolve the line bets immediately. Any 4/5/6/8/9/10 becomes the point - the puck flips to ON and shows the number.

During the point phase, the shooter keeps rolling. Re-rolling the point wins for Pass Line. Rolling a 7 first ("seven-out") loses for Pass Line and ends the shooter's turn. Anything else is just another roll - your standing bets keep working until something resolves them.

Line Bets (the main game)

Pass Line

With the shooter. Come-out: wins on 7/11, loses on 2/3/12. Point phase: wins if the point is rolled before a 7.

1 : 1

Don't Pass Bar

Against the shooter. Come-out: wins on 2/3, pushes on 12, loses on 7/11. Point phase: wins on seven-out, loses if the point is rolled first.

1 : 1

Come

Only available after a point is set. Acts like opening a fresh Pass Line bet on the very next roll - the next number rolled becomes your personal "come point".

1 : 1

Don't Come Bar

Only available after a point is set. Same idea as Come, but the Don't Pass version - bet against the next number being made.

1 : 1

Number Bets (Place / Buy / Lay)

Each point box (4/5/6/8/9/10) gives you three ways to bet the number against a 7. These bets stay on the layout across rolls - winnings get paid and the original stake keeps working until a 7 takes it down or you right-click to pull it.

Place

The number rolls before a 7. Standard house odds.

6/8: 7:6 5/9: 7:5 4/10: 9:5

Buy

Same condition as Place, but paid at true odds minus a 5% commission on the win. Better than Place on 4 and 10; worse on the rest.

6/8: 6:5 5/9: 3:2 4/10: 2:1 (−5%)

Lay

The opposite of Buy - bet that a 7 comes before the number. True odds minus 5%. You're laying more to win less because 7 is favored.

6/8: 5:6 5/9: 2:3 4/10: 1:2 (−5%)

Field (one roll)

Field

Resolves on the very next roll. Wins on 2/3/4/9/10/11/12. Loses on 5/6/7/8.

2: 2:1 12: 3:1 rest: 1:1

Big 6 / Big 8

Big 6 & 8

A 6 or 8 rolls before a 7. Pays even money - strictly worse than Place 6 / Place 8 (which pay 7:6). Included for completeness; serious players ignore it.

1 : 1

Hardways

A "hardway" means rolling doubles. Hard 4 = 2+2, hard 6 = 3+3, hard 8 = 4+4, hard 10 = 5+5. Wins on the exact double, loses on the same total rolled the "easy" way or on any 7. Stays on the layout until it resolves.

Hard 6 / Hard 8

9 : 1

Hard 4 / Hard 10

7 : 1

One-Roll Props

These all resolve on the very next roll - win or lose, the bet comes down. Highest house edge on the table; treat as entertainment, not strategy.

Any 7

Next roll is a 7.

4 : 1

Any Craps / C

Next roll is 2, 3, or 12.

7 : 1

E (Yo 11)

Next roll is 11.

15 : 1

C & E

Split between any-craps and 11. One bet, two ways to hit.

craps: 3:1 11: 7:1

Horn

One-roll bets on the four "horn" numbers - the rarest totals on the dice. Click each corner separately to stake the one you want.

Horn 2 / Horn 12 (snake eyes / boxcars)

30 : 1

Horn 3 / Horn 11

15 : 1

SET BETS ON Toggle

The button in the controls row. When ON (the default), your Place / Buy / Lay bets are always "working" - they can win or lose on every roll, including the come-out. Toggle OFF to use the strict casino rule: those bets sit on the layout but don't resolve during a come-out roll. Bets shown with a hatched overlay + "OFF" badge are currently inactive.

Controls

Left-click a bet zone - adds the selected chip value to that bet.

Right-click a bet zone - pulls the bet down and refunds your bankroll (only when not mid-roll).

Click a chip at the bottom to change which denomination is active.

PRESS - doubles every Place bet you currently have (paid from bankroll).

ACROSS - places the selected chip on all six points (4/5/6/8/9/10).

INSIDE - places 5/6/8/9.

OUTSIDE - places 4/5/9/10.

Clear Bets - pulls every bet back into your bankroll.

Shoot Dice - rolls the dice and resolves everything on the layout.

Chips & Bankroll

Minimum bet is one 1M chip; the maximum total bet on any single zone is 5B, and the maximum payout on a single bet is 50B.

All amounts are in OSRS gold pieces. M = million GP, B = billion GP (anything ≥ 1,000M displays as B). Chip denominations: 1M, 5M, 25M, 100M, 500M. You start with 1B. Bankroll resets to 1B on page refresh during playtesting - persistent balances will land when GP integration goes live.

Provably Fair

Every roll is provably fair: the dice derive from HMAC-SHA256(serverSeed, clientSeed:nonce), committed by a public hash before you shoot. You have your own client seed and can rotate to a fresh pair anytime — rotating reveals the old server seed so you can verify every past roll. Open it via the Fair button in the top bar.