Knockoin Slot Review

About the Game

Do you wish you could go back to your childhood and play video games all night long? We offer you exactly that – Knockoin by Croco Gaming! Play classic platformers, break world records, and unlock all the secret levels. Help the skater jump from platform to platform while collecting coins and power-ups. Show off your skills and claim an epic victory!

The payouts for the symbols shown above correspond to the current bet level. The theoretical Return to Player (RTP) for this game is 96.27%. The RTP figure was calculated based on a simulation of 10,000,000,000 spins.

Buy Bonus

By pressing the “BUY BONUS” button, players can purchase bonus games and activate special spins. During special spins, the triggering of specific features is guaranteed. Once activated, special spins remain active until the player turns them off.
List of bonus games and special features available for purchase:

“Bonus Boost” special spins increase the probability of triggering bonus games by fivefold when activated. The RTP for this mode is 97.12%.
“Rio Spins” special spins guarantee the appearance of at least one Rio Wild symbol on every spin. Simple Box symbols always land on reels 1, 3, and 5, while Mystery Box symbols land on reels 2 and 4. Bonus games are disabled in this mode. The RTP for this mode is 96.82%.
“8 Bit Castle” Buy Bonus immediately triggers 8 Bit Castle Bonus Game. The RTP when buying the Bonus game is 96.57%.
“Secret Level” Buy Bonus immediately triggers Secret Level Bonus Game. The RTP when buying the Bonus game is 96.72%.

Max Win

The maximum win in Knockoin is capped at 15,000 times the bet. If the total win for a round reaches this limit, the round ends immediately, the player is paid the capped amount, and any remaining bonus features are forfeited.

Game Rules

Wild symbols substitute for all symbols listed in the paytable above.

To secure a win, players must land matching symbols on adjacent reels, starting from the leftmost one, to form combinations on active paylines. Winnings from multiple lines are added together.

Boxes

A special row of cells is positioned above the reels. With each spin, the cells shift one reel to the left. There are two types of cells: standard and “Mystery Boxes.”

If a Rio Wild symbol lands beneath a cell, the Rio character jumps up and reveals the prize hidden inside that cell.
Once a cell reveals its prize, it becomes empty and can no longer be activated.
Standard cells may contain the following prizes: a gold coin, a gold chest, or no prize at all.

The gold coin awards a random cash prize that is a multiple of the bet: 1x, 2x, 3x, 5x, 6x, 8x, or 10x.

The Golden Box triggers the “Wheel of Fortune” feature. The wheel is divided into 12 sectors. It spins and awards a prize corresponding to the landed sector, after which that sector is deactivated. Spinning continues until the wheel lands on an already deactivated sector or until all sectors have been deactivated. Possible rewards: 1x, 3x, 5x, 8x, 10x, 15x, 30x, 50x, 100x, 200x, 500x, 1000x.
Mystery Boxes may contain the following rewards: a gold coin, a booster mushroom, or a golden pipe.
A gold coin obtained from a Mystery Box can yield a win with a multiplier of 2x, 3x, 5x, 6x, 8x, 10x, 15x, or 20x.

The Power-Up Mushroom awards 1 respin. The Spray Maw feature is always activated during this respin. Crates activated before or during the respin can trigger only once.
The Golden Pipe triggers the “Secret Level” bonus game. Only one Golden Pipe can land per spin. The Golden Pipe appears only in the base game.

Spray Maw

The Spray Maw feature can trigger during any spin. When activated, it adds between 2 and 5 Egg Wild symbols to random reel positions. Egg Wild symbols cannot land on positions already occupied by other Wild symbols.

8 Bit Castle – Bonus Game

The Scatter symbol (depicting a pipe) appears only in the base game. Landing 3 or more of these symbols triggers the “8 Bit Castle” bonus game.

• 3 Scatter symbols award 10 free spins.
• 4 Scatter symbols award 12 free spins.
• 5 Scatter symbols award 15 free spins.

During the bonus game, the boxes no longer shift to the left after each spin. Instead, they remain in place throughout the game and can be activated multiple times. Reels 2 and 4 always contain “Mystery Boxes,” while reels 1, 3, and 5 contain regular boxes. Regular boxes always contain a reward.

The standard Power-Up Mushroom upgrades to a Golden Power-Up Mushroom. Upon appearing, it triggers a series of respins that continue until the player lands a win.

Secret Level

The Golden Pipe triggers the “Secret Level” bonus game, featuring 3 spins with a reset mechanic.

During the bonus game, all boxes contain rewards in the form of gold coins and can be triggered multiple times. Gold coins award cash prizes based on multipliers of the bet: 2x, 3x, 5x, 8x, 10x, 15x, 20x, 25x, 50x, 80x, 100x, or 200x.
The bonus game continues until the player completes three consecutive spins without triggering any boxes.
Upon completion of the bonus game (the “Secret Level”), the player can proceed to a “Crash” style mini-game. In this game, a balloon rises while the multiplier value increases. The player must lock in the multiplier before the balloon bursts; if the balloon bursts, the winnings accumulated from the gold coins are forfeited. The multiplier starts at 1x and can reach up to 960x; the final payout is calculated by applying the locked-in multiplier to the total amount won from the gold coins. The optimal RTP for the player is achieved by choosing not to participate in the Crash mini-game.

Pros & Cons