AKITSORA GAMING

Year-End Bingo

The last act of the year-end party: one bingo card, stamped number by number.

Year-End Bingo: one bet deals a 5×5 bingo card and 10 spins of a number machine. Wilds stamp the best cell, and completed lines climb the prize ladder to 2,750×.

Demo play uses virtual credits with no monetary value.

RTP
96.61%
Volatility
Medium-low2.60
Max win
2,750× bet

In-game screens

Captured straight from the running game — real boards, real wins.

Year-End Bingo — The party hall and the card
The party hall and the cardThe number machine sits above the stage with the bingo card in the middle; the host stands at the lectern on the right and colleagues watch from the front rows.
Year-End Bingo — BINGO!
BINGO!Numbers are stamped one by one; complete a line and it's BINGO as the ladder climbs.
Year-End Bingo — The prize ladder
The prize ladderAfter the last spin the ladder pays by completed lines and the host announces the prize.
Year-End Bingo — Big win
Big winA single round is capped at 2,750× the bet (a full card).
Year-End Bingo — In-game rules
In-game rulesThe RGS supplies the spins, number ranges, gold envelopes and the prize ladder; this page reads the same game definition.

Specification

Type5-reel number machine (one row) + 5×5 bingo card · 10 spins per round · prize ladder over 12 lines
Return to player (RTP)96.61%
VolatilityMedium-low (2.60)
Hit rate44.51%
Rounds winning ≥ 1× bet44.51%
Max win per round2,750× bet
BINGO frequency≈ 1 in 2.47 rounds
Calibration sample21,323,703,814 spins, standard error 0.01%

Game math specifications and the paytable are read at build time from the definitions shared with the server code. See Math version for the configuration shown; confirm any other version or operator-specific settings separately.

How wins work

  • Each round costs one bet and deals a 5×5 bingo card (the centre is a free cell, stamped from the start); the number machine then spins 10 times. One press of spin plays the whole card.
  • Reels 1–5 of the number machine match the card's 5 columns: reel 1 draws 1–15, reel 2 16–30 … reel 5 up to 75. A number in the same column of the card is stamped; within a spin the reels are processed in order from reel 1 to reel 5.
  • Toast stamps the best open cell in its column and the President's Prize stamps the best open cell on the whole card; Extension adds one spin to the round (up to 14 spins).
  • There are 12 lines: 5 across, 5 down and 2 diagonals. After the last spin the prize ladder pays by completed lines: 1 line 1×, 2 lines 2×, 3 lines 6×, 4 lines 15×, 5 lines 25×, 6 lines 50×, 7 lines 100×, 8 lines 200×, 9 lines 400×, 10 lines 600×, full card 2,750× (multiples of the total bet).

Paytable

The number machine has one line: the table shows the prize box paying 3, 4 or 5 in a row from reel 1, as multiples of the total bet (paid on that spin). Other symbols don't form lines — number balls, Toast and the President's Prize stamp the card; the gold envelope and Extension are described above. The card's prize ladder is paid separately by completed lines. The paytable comes from the same source as the in-game display.

Symbol3 in a row4 in a row5 in a row
Prize boxHigh-pay 520100

Special symbols

President's Prize

Stamps the best open cell on the whole card.

Toast

Stamps the best open cell in the column matching its reel; nothing happens if that column is full.

Gold envelope

Pays one of 2× / 3× / 5× / 10× / 20× on the spin.

Extension

Adds one spin to the round, up to 14 spins.

Features

Toast and the President's Prize

Toast stamps the best open cell in its column; the President's Prize stamps the best open cell on the whole card. The best cell follows a fixed rule (most lines completed first, then most lines left one cell short …) — no player choice.

Gold envelope and Extension

A gold envelope pays one of 2× / 3× / 5× / 10× / 20× on the spin; Extension adds one spin to the round, up to 14 spins.

Prize ladder

The more of the 12 lines you complete, the higher the ladder: 1 line 1×, 2 lines 2×, 3 lines 6×, 4 lines 15×, 5 lines 25×, 6 lines 50×, 7 lines 100×, 8 lines 200×, 9 lines 400×, 10 lines 600×, full card 2,750×. The last missing cell always sits on at least two lines, so exactly 11 lines cannot happen; a full card is the game's top prize.

Prize box

The number machine's only line: prize boxes 3 or more in a row from reel 1 pay 5×–100× on that spin.

Volatility and win distribution

RTP 96.61%, volatility 2.60. Rates are per round (one card): the 44.51% hit rate counts any winning round; 44.51% of all rounds return at least the stake (the smallest prize is 1×). At least one BINGO happens about once every 2.47 rounds. Maximum win is 2,750× the bet per round (a full card), and the independent simulation actually reaches it.

Technical

Game codeaki_bingo
Math versionbg1
TechnologyHTML5, no plug-in; one client for desktop and mobile
ViewportLandscape with proportional scaling
In-game languageTraditional Chinese (additional languages on request)
CurrenciesTWD (others can be registered on request)
IntegrationTransfer wallet (Operator API v3), launch-token redirect

Sources & verification scope

This product specification is written and maintained by its developer, Akitsora Gaming (AKI電子 in Taiwan). Measurement methods and sample information for RTP, volatility and hit rate appear in the specification table. Sampled results have uncertainty; RTP describes long-run return, not an individual player or session outcome.

Internal simulations and tests are not independent certification. We do not currently hold GLI or BMM certification reports. Supply to a market requiring third-party certification depends on completing its requirements.

See slot game development and supply for integration and supply scope, About us for development and content responsibility, or contact us for a math summary, version confirmation or a correction to this page.

The story

Fiction and adapted settings written by Akitsora Gaming for this title, including invented dialogue and events. This is not a historical or folklore reference. The rules and specification tables define the gameplay and math.

The year-end banquet hall glows behind a red-and-white curtain.
The host taps the microphone: "Final event of the night — the grand bingo draw!"

I. Behind the Red-and-White Curtain

At the close of the working year, the company banquet hall is warm with paper lanterns, clinking glasses, and lively conversation. Across the main stage, a red-and-white ceremonial curtain frames a long table stacked high with ribboned gift boxes and prize placards. When the dishes are cleared, the party host steps up to the microphone and rolls out the brass number machine.

Every round deals a fresh five-by-five bingo card with its centre free square already stamped in bright red ink from the very start. Above the card, the five reels of the number machine correspond directly to the five vertical columns below, turning a classic year-end party draw into a brisk, self-contained series of spins played with a single press.

II. Rolling Balls and Crimson Stamps

As each spin stops in order from left to right across the five reels, numbered balls settle into the tray and any matching square in the corresponding column receives a bright crimson stamp. Whenever the festive Toast symbol lands on a reel, the host automatically stamps the single most advantageous open square in that column.

Better still, the coveted President's Prize searches across the entire card and stamps whichever open cell creates the strongest possible board according to fixed rules, while a surprise Gold envelope pays an instant cash bonus on that spin and an encore Extension adds one more spin to keep the draw going.

III. One Short of a Line

Spin by spin the red ink spreads across horizontal rows, vertical columns, and both main diagonals of the card. As soon as any line stands just one square short of completion, excitement ripples across the banquet tables and someone in the front row thrusts a hand into the air with a loud shout of "Reach!"

Because twelve lines intersect across the five-by-five grid, a single missing square late in the round often sits at the crossroads of two or three potential lines at the same time. One lucky number or well-placed wild stamp can complete multiple lines in a single stroke and send the payout vaulting up the Prize ladder.

IV. The Hand Bell and the Prize Table

Each completed line rings the host's brass hand bell across the hall, and when the final spin concludes, the total number of horizontal, vertical, and diagonal lines determines how high you climb up the prize table — all the way to a completely stamped full card and the grandest Prize box waiting on stage.

Bright paper confetti drifts over the banquet tables as the year-end celebration comes to a joyful close and guests gather up their gift boxes. The ringing hand bell and the mountain of gifts capture the warmth of the office party theme, not a promise: every spin's outcome is still decided independently by the RGS random number generator.

Want to spin Year-End Bingo yourself?

The demo needs no account — click and spin. For integration docs, the math summary or sandbox access, send us an email.

Demo play uses virtual credits with no monetary value.