Red Door Roulette — Bonus Features
Keys, 2x-20x multipliers and a 64-segment Crazy Time wheel. Four published mechanics, one narrow way in — and a Straight Up payout cut to 19:1 to pay for all of it.
How Each Mechanic Works
Trigger, what happens, multipliers and where it actually matters to your chips. New to the table? Start with the Red Door Roulette how-to-play guide.
Bonus Numbers & Keys
How to Trigger
Automatic. Once the betting window shuts, the dealer pulls the lever on the slot machine beside the table.
What Happens
The slot machine stops on a number between 3 and 15 shown together with a Key symbol. That number is how many Keys are released into the round. Each Key is then flung to a random numbered bet spot on the layout with an animation, and only one Key can sit on any given number — so a 15-Key round covers fifteen different single numbers out of the 37 on the wheel.
Multipliers
The Keys themselves carry no guaranteed value; some of them reveal a multiplier as they land (see below).
Variants
The count is re-rolled every round, so coverage swings between 3 and 15 numbers from one spin to the next.
Strategy
Keys land after betting closes, so you can never chase them. What you can do is notice that the whole bonus layer is gated behind single numbers — if your chips only ever sit on red/black or dozens, the Keys are decoration and you are paying for a feature you cannot reach.
| Keys per round | 3–15 |
| Assigned to | Random numbered bet spots |
| Limit | One Key per number |
| Timing | After betting closes |
| Source | Evolution game page |
Key Multipliers (2x–20x)
How to Trigger
Revealed by the landing animation as a Key drops onto a number.
What Happens
Not every Key is bare. Some arrive with a random multiplier attached, anywhere from 2x up to 20x. If the ball then settles in that pocket and you had a chip on the number, your payout is multiplied by that figure. The same multiplier has a second job: if that number is the one that sends you through the red door, it scales the bonus wheel as well.
Multipliers
2x to 20x, drawn at random per Key.
Variants
A multiplied Key pays at the table and scales the Crazy Time wheel — Evolution applies it in both places.
Strategy
This is where the 19:1 Straight Up payout gets paid back, and only on numbers you actually backed. Spreading chips thinly across many single numbers raises the chance of catching a multiplied Key; heavy coverage of outside bets removes that chance entirely.
| Range | 2x–20x |
| Applies to | Straight Up wins on that number |
| Also scales | Crazy Time wheel multipliers |
| Frequency | Not published |
| Assignment | Random |
The Crazy Time Bonus Round
How to Trigger
A winning Straight Up bet on a number that is holding a Key.
What Happens
The red door opens onto the Crazy Time bonus world, where a 64-segment wheel is waiting. If the Key on your number carried a multiplier, every multiplier segment on the wheel is multiplied by it before the spin. The flapper comes to rest on a segment and that multiplier is applied to your winnings.
Multipliers
Set by the segment the flapper lands on, scaled first by any multiplier your Key carried.
Variants
Entry is Straight Up only — no side bet, no buy-in, no outside-bet route.
Strategy
The gate is narrow on purpose. Reaching the wheel needs your chip and a Key on the same number and the ball in that pocket, which is why the round is memorable rather than routine. Evolution does not publish how often it fires, so do not plan a session around hitting it.
| Entry | Straight Up win on a Key number |
| Wheel | 64 segments |
| Pre-scaling | By the Key multiplier |
| Resolved by | Flapper |
| Trigger rate | Not published |
The DOUBLE Segment
How to Trigger
The flapper stops on DOUBLE during the bonus round.
What Happens
Instead of paying out, the wheel rewrites itself: every multiplier value on all 64 segments is doubled and the wheel is spun again. Nothing is collected until the flapper finally settles on a paying segment, so the round can keep compounding before it resolves.
Multipliers
Doubles every multiplier on the wheel, then respins.
Variants
Evolution does not state a cap on consecutive DOUBLE hits, nor how many segments carry it.
Strategy
There is nothing to decide here — it resolves on its own. It is worth knowing about because it is the only published mechanic that can stack the bonus wheel beyond its printed values, and it is why a single door opening can end up worth far more than the segment you first see.
| Effect | All wheel multipliers doubled |
| Then | Wheel spins again |
| Payout | Deferred until a paying segment |
| Cap | Not published |
| Segment count | Not published |
There Is No Buy-In
Plenty of games let you pay your way into the feature. Red Door Roulette does not, and there is no side bet either. Evolution's rules state one route: a win on a Straight Up bet, on a number carrying a Key. That is the whole of it — no shortcut has ever been published, so if a site offers you one, it is describing a different table. The full list of figures the studio does print sits in the Red Door Roulette how-to-play guide.
What Evolution States
What the round deals out
What it pays
Watch the Features Land
This table runs live only, with no free-play mode — so the way to see Keys land before you stake is to sit at a table and watch. Brush up first with the Red Door Roulette how to play guide.
What You Can See for Free