Iconic21

Knock Knock

Play Knock Knock slot by Iconic21 for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

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SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

96%

return to player

Volatility

Adjusted

variance

Max win

2,000×

top multiplier

Min bet

$0.10

per spin

Reels

grid

Player rating

4.6 ★

4 votes

DEMO Play free, no signup

Iconic21

4.6 / 5

4 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96% → 9.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential6.6/10

x2000.00 (2000×) → 6.6/10

Features1.5/10

1 features → 1.5/10

Game Mechanics4.3/10

f=1 r=5 → 4.3/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–100 (×1000) → 6.0/10

Provider Reputation4.8/10

provider avg 4.8 → 4.8/10

Popularity0/10

synthetic proxy → 0.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 52 — Knock Knock by Iconic21

https://slotranker.com/iconic21/knock-knock#score

How to cite

Spec sheet

Knock Knock at a glance.

Identity

Slot nameKnock Knock

StudioIconic21

Released8/11/2025

Math

SlotRanker Score52

RTP96%

VolatilityAdjusted

Max win2,000×

Bet range$0.10 – $100.00

Player rating4.6 / 5 · 4 votes

Format

Reels5

Paylines—

Layout5x3

Features

Themes

Expected average based on this slot's 96% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.60

Cost per session$1.60

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Knock Knock? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: Mediumassumed — not published for this slot

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (Medium). The model is calibrated so the average return equals this slot's published RTP (96.00%), with wins capped at its top multiplier (2,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Compare Knock Knock with other games

	Knock Knock Score 52This game	Inspector Gadget Score 83	Dwarfs Gone Wild Score 74	The Catfather Score 68	Mission Coinplete Score 89
Identity
Studio	Iconic21	Blueprint Gaming	Quickspin	Pragmatic Play	Fantasma Games
Released	8/11/2025	4/9/2018	6/12/2018	3/15/2016	—
Math
RTP	96%	96.49%	96.38%	96.52%	96.22%
Volatility	Adjusted	Medium volatility	Medium volatility	—	High volatility
Max win	2,000×	—	—	—	—
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	—	50	30	9	Cluster
Min bet	0.10	0.20	0.20	0.90	0.10
Max bet	100.00	200.00	100.00	45.00	300.00
Features
Progressive	—	—	—	—	—
Wild symbol	—	✓	✓	✓	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	✓	✓	✓
Multiplier	✓	✓	✓	—	✓
Bonus game	—	✓	✓	—	✓
Respins	—	✓	✓	—	—

Every number is shown as a delta against Knock Knock.

Comparing against

Knock Knock

Iconic21

RTP

96%

Max win

2,000×

Score

+ Wild+ Free Spins+ Scatter+ Bonus Game+ Respins

+ Wild+ Free Spins+ Scatter+ Bonus Game+ Respins

+ Wild+ Free Spins+ Scatter− Multiplier

+ Wild+ Free Spins+ Scatter+ Bonus Game

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01What is the return to player (RTP) for Knock Knock?

Knock Knock features an RTP of 96%, indicating the percentage of total bets paid back as winnings in the long run.

02Can I play Knock Knock without paying?

Knock Knock does not come in demo form—check out other titles from Iconic21 if you want a free trial first.

03Can I play Knock Knock on my phone?

Yes, Knock Knock is fully compatible with mobile devices.

04Can you play for real money on Knock Knock?

Yes, just select one of the casinos shown above to start playing Knock Knock with real funds.

05What is the most you can win from a single spin in Knock Knock?

The most you can win from a single spin in Knock Knock is x2000.00 your bet.Depending on the combinations of features, you can win up to x2000.00 your bet in Knock Knock.

06Does Knock Knock support Bonus Buy functionality?

Knock Knock doesn’t offer a Bonus Buy option.

07Does Knock Knock reward players with Free Spins?

There is no Free Spins round in Knock Knock.

08Does Knock Knock feature the Megaways system?

Knock Knock doesn’t use the Megaways mechanic.

09Is there a progressive jackpot in Knock Knock?

Unfortunately, there is no progressive jackpot in Knock Knock.

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