Midnight Knock Slot Demo by Cloud Studio

Midnight Knock by Cloud Studio Slot Overview

Midnight Knock by Cloud Studio fills a cartoon haunted castle with playful ghosts, stained-glass windows and purple shadows. Its sticky wilds share a mechanic with Miami Mayhem, but here doors and keys release ghosts whose wild trails persist during Super Bonus.

The distinctive Hidden feature doubles cell multipliers with every ghost step, up to x64, while Mega Hidden keeps ghosts walking throughout the bonus. High volatility accompanies a maximum win of 50,000x the bet. Explore the haunted halls with the free demo on BonusTiime.

Midnight Knock Slot Specifications

Midnight Knock uses a 5×4 grid and 20 lines. The house edge sits at 3.30%, giving the Cloud Studio slot a clear maths profile for online slot gameplay.

RTP (Return to Player)

The 96.70% RTP describes the theoretical long-term return, while the 3.30% house edge reflects the long-term margin.

Volatility

High volatility means sharper swings and less regular hits, so bankroll control matters during online slot gameplay.

Max Win

The 50,000x max win means a €1 spin can reach €50,000.

Midnight Knock Slot Features

Ghosts, Door + Key, Golden Door, Mirror and Potion drive Midnight Knock’s most unusual moments, while Regular Bonus, Super Bonus, Hidden and Mega Hidden keep the feature structure varied and tactical.

Ghosts

Ghosts act as wilds and replace every paying symbol. They can also carry a multiplier, which makes their movement more valuable across the board. If a ghost steps on an open door, that cell turns into a wild too, so each pass can reshape several lines.

Door + Key

A Door + Key match frees one ghost for each door and key on the same spin. The ghost walks the board and leaves wilds behind, while used keys stay greyed out and pay nothing. This creates a moving wild trail rather than a single landing symbol.

Open Door

An Open Door is not a wild and pays nothing on its own. It stays on the board after a ghost leaves, and another ghost stepping on it turns it into a wild. That rule keeps the board active between ghost movements.

FS Scatter

The FS Scatter pays nothing, but it starts the bonus structure. One appears on each reel at most, and 3, 4 or 5 of them trigger Regular Bonus, Super Bonus or Hidden. Five with a Door and a Key start Mega Hidden.

Golden Door

Golden Door turns its entire reel wild when it lands. Every paying symbol on that reel becomes a wild, but doors, keys, the mirror and the potion stay as they are. In Super Bonus, the wild reel stays until the bonus ends; elsewhere it lasts one spin.

Mirror

The Mirror reveals one multiplier from x2, x3, x5, x10 or x25. In the Feature Spin, it shows x5, x10 or x25 only. It multiplies the total win of that spin, but it pays nothing if the spin does not win.

Potion

The Potion turns up to two low symbols into the same high symbol after the ghosts walk. It chooses the best result from Witch Hat, Bat or Skull, and the change lasts only for that spin. That gives the board a final optimisation step.

Free Spins

Free Spins start from 3, 4 or 5 FS Scatter symbols, or from 5 FS Scatter with a Door and a Key for Mega Hidden. In a bonus, each FS symbol adds 1 free spin. Regular Bonus gives 10 free spins and starts with one door, Super Bonus gives 12 and keeps wilds, Hidden gives 15 and doubles cell multipliers, and Mega Hidden gives 13, with no FS symbol landing in it.

Regular Bonus

Regular Bonus starts with one door on the board. Every door that lands stays until the end, and each key opens every door to release a ghost from each one. That makes it a controlled bonus with repeated ghost movement across the same layout.

Super Bonus

Super Bonus starts with one door and one key. Wilds left by the ghosts stay until the end, and every new pass adds +1 to their multipliers. This bonus creates long-lived wild positions that can strengthen later spins rather than resetting after each hit.

Hidden

Hidden starts with one door and one key. Each ghost step doubles the cell multiplier, from x2 to x4 and up to x64. A cell at x64 becomes sealed, so ghosts cannot cross it. Multipliers stay on their cells until the bonus ends.

Mega Hidden

Mega Hidden starts with two ghosts. Every ghost stays and walks again on every spin, and the global multiplier equals the number of ghosts. That total multiplier applies at the end of the bonus, so the mode focuses on cumulative progression rather than single-spin bursts.

Bonus Buy

Bonus Buy opens the paid modes, and an active mode is charged on every spin until you switch it off. Feature Spin, Regular Bonus, Super Bonus and Mystery each come in four volatility settings, Low, Medium, High and Extreme: the price is the same at every setting, and only the odds of each outcome change.

• Ante: x3 the bet per spin; higher chance to trigger a bonus.
• Super Ante: x5 the bet per spin; much higher bonus chance.
• Feature Spin: x300 the bet per spin; every spin brings one of four powers, Ghost Walk, Golden Door, Mirror or Potion.
• Regular Bonus: x100 the bet per spin; every spin starts Regular Bonus with 10 free spins.
• Super Bonus: x200 the bet per spin; every spin starts Super Bonus with 12 free spins.
• Mystery: x500 the bet per spin; a random outcome every spin, which at the Medium setting is 45% no bonus, 44% Super Bonus, 10% Hidden and 1% Mega Hidden.

Midnight Knock Slot Review

Midnight Knock builds its identity around a cartoon haunted castle, stained glass, doorways and ghostly symbols that fit the mechanics rather than sitting on top of them. The ghosts, doors and keys create a clear visual logic, while the purple and gold interface keeps the screen readable and playful.

The 5×4 layout and 20 lines keep the base game straightforward, but the real action comes from Ghost walks, Golden Door and the multiplier driven bonus modes. High volatility and a 50,000x ceiling give the game a sharp risk profile, yet the Feature Spin buy options add a lot of menu clutter.

Midnight Knock combines doors, keys, retriggers and persistent wilds, but longer sessions and bonus buying do not improve its theoretical RTP. The Hidden and Mega Hidden modes give it more depth than a standard haunted slot, and the 96.70% RTP helps keep the maths respectable.

Midnight Knock Slot FAQ