Drop medals, let the pusher shove them over the edge, and feed the gates to spin the slot on the screen.
Medals won per medal dropped. Medals still lying on the field are not counted yet.
This is two machines in one cabinet. The screen is a lottery, and its odds can be written down exactly. The field is physics: no table of odds, just a place where medals can go missing.
Every medal through a gate starts one spin. While the reels are busy the machine holds up to 4 more; a medal through a gate when all 4 are held starts nothing.
| Line | Chance | About | Pays |
|---|---|---|---|
| 7 · 7 · 7 | 0.6% | 1 in 167 | A prize ball on the field |
| Three of 1, 3, 5 or 9 | 1.5% | 1 in 67 | A tower of 20 medals |
| Three of 2, 4, 6 or 8 | 4% | 1 in 25 | 8 medals |
| Anything else | 93.9% | — | — |
A tower is stacked on the pusher a little behind its lip and rides it like any medal, only harder to push. When it goes over the lip its medals come down across the lower table. Drop medals behind it to bring it down sooner.
The result is drawn the moment a spin starts, and the reels only act it out. About 15% of losing spins stop the two outer reels alike first — a “reach” — before the centre misses. It looks close. It changes nothing: the spin was lost before the reels moved.
A ball pushed over the front edge lights a roulette of 12 pockets, each as likely as the next. A ball is never lost: it does not fit through the open sides, so sooner or later it goes over the front.
| Pockets | Chance | Paid as | |
|---|---|---|---|
| Jackpot | 1 | 8.3% | 12 towers on the pusher |
| 100 medals | 3 | 25.0% | 4 towers on the pusher |
| 50 medals | 4 | 33.3% | 2 towers on the pusher |
| 30 medals | 4 | 33.3% | Medals thrown onto the field |
The jackpot starts at 300 medals and grows by one for every 40 medals dropped on this machine. One spin in 2,000 leads to it: three sevens for the ball, then the one pocket once the ball goes over.
Each prize times its chance, added up, with a ball counted as the roulette it will start. The jackpot is the only thing that moves it.
| Jackpot at | Average roulette prize | A spin pays, on average |
|---|---|---|
| 300 medals | 76.7 medals | 1.08 medals |
| 500 medals | 93.3 medals | 1.18 medals |
| 1,000 medals | 135 medals | 1.43 medals |
So a medal through a gate is worth about 1.08 more medals — and those land on the field, not in your tray. They still have to make it over the front.
Every medal that reaches the field — one you dropped or one the screen paid — leaves it sooner or later, over the front or off a side. So what comes back to you is the front’s share of everything that went in:
return = front’s share × (1 + spins per medal × medals per spin)
Two of those three numbers are physics. They depend on where the medals lie and where you drop the next one, and no formula gives them. Try your own:
At this front share you would break even if 26% of your medals started a spin.
The Simulation tab measures both. Aimed at a gate, about 78% of medals leave by the front and about 22% come through a gate — fewer start a spin if you drop faster than the screen can keep up.
Four ways of aiming, each on a machine of its own that starts from the same field. Each plays the same number of medals at the same pace, after 300 uncounted medals to fill its tables.