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Game guide · fast games

Tower: nine floors and a house edge that compounds

In Tower you pick one of three lanes on each floor. The multiplier grows 1.485× a floor, but the return shrinks with every step — and that is the whole game.

Try Tower on play money

Three lanes on each floor, one of them a mine. Pick right and climb. The stake is play money — nothing can be won, but the multipliers are exactly those in the table below.

Climb nine floors past the mines for up to 35×.Theoretical return 99% per decision · up to 35.12×

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Tower in short

Tower is a nine-floor climb. Each floor has three lanes and one of them hides a mine. Pick one, and if it is safe the multiplier rises and you can climb to the next floor. You can cash out at any point; hit a mine and the whole stake is gone.

The mechanic is close to Mines, but one thing is fundamentally different and worth catching: in Tower the house edge applies on every floor separately. Mines takes its percentage once for the whole round; Tower takes it nine times.

That makes Tower the game in the fast-games family where the advertised number and the real number diverge the most. Both are below.

How a round works

  1. Bet. You stake before the first floor.
  2. Pick a lane. One of three lanes is a mine — the safe chance is 2 in 3.
  3. Climb or cash out. A safe pick multiplies the running total by 1.485 and opens the next floor.
  4. The top. The ninth floor ends the round at the maximum multiplier.

Multipliers floor by floor

FloorMultiplierChance of reaching itActual return
11.49×66.7%99.0%
22.21×44.4%98.0%
33.27×29.6%97.0%
44.86×19.8%96.1%
57.22×13.2%95.1%
610.72×8.8%94.1%
715.93×5.9%93.2%
823.65×3.9%92.3%
935.12×2.6%91.4%

Why the last column falls

Each floor on its own is priced correctly: the safe lane is two in three and the multiplier is 1.485, which gives 0.667 × 1.485 = 0.99. One percent to the house, exactly as in crash or dice.

But you are not making one decision. You are making them in sequence, and each further decision takes its one percent again, off an already-reduced amount. Nine floors means 0.99 to the ninth power:

0.99⁹ = 0.9135, or 91.4%.

That is almost nine percent of house edge — more than a typical slot and three times roulette. The game is not lying: each step really is 99%. But the return on a full climb is a different number entirely, and it is written down nowhere.

Which floor to stop at

How much riskFloorMultiplierHow often it works
Little1–21.49–2.21×Close to half of rounds
Moderate3–43.27–4.86×Every third to fifth round
A lot6–710.72–15.93×Every 11th to 17th round
All or nothing935.12×Every 38th round

If you set the target in advance and stick to it, the table shows exactly what it costs. The cheapest Tower is a short Tower.

Three things worth knowing

  • Lane position is irrelevant. The mine is placed at random on each floor and the left, middle and right lanes are identical.
  • Previous floors do not affect the next one. Each floor is a fresh 2-in-3 decision. Three correct picks in a row make the fourth neither more nor less likely (the gambler's fallacy).
  • The same compounding applies in Hi-Lo and in any game where a win can be risked again — including the gamble feature in slots.

Where to play Tower for real money

Tower and its variants (Dragon Tower, Stairs) are common at crypto casinos and crash casinos. Always check for an Estonian licence.

Other demos

The closest relative is mines, where the edge is taken only once. Hi-lo has the same compounding. All are collected in the games hub.

What is Tower's actual return to player?
99% per floor, but it compounds. Climbing all nine floors returns 0.99 to the ninth power, or 91.4%. The further you climb, the worse the deal.
Is one lane safer than another?
No. The mine is placed at random on each floor and all three lanes are equally likely. Patterns from previous floors say nothing.
Which floor should I stop at?
Purely in return terms, shorter is always better: floor one returns 99%, floor nine 91.4%. If you want a big multiplier, that gap is the price you pay for it.
What is the difference between Tower and Mines?
In Mines the house edge is applied once for the whole round, so the return stays at 99% however many tiles you open. In Tower it is applied on every floor and compounds.
Can anything be won in this demo?
No. It plays with play money only and the balance resets on reload. Real-money play in Estonia is permitted from age 21.