5-Line Bonus 21 Slot

5-Line Bonus 21 Slot Review

Experience the 5-Line Bonus 21 slot game by Novomatic and seize the opportunity to win big with substituting wilds, escalating multipliers, and an engaging bonus round that challenges you to test your luck with anticipation. Transition between a straightforward game layout situated at the bottom of the screen to more intricate gameplay elements at the top.

Blackjack on the Reels!

The 5-Line Bonus 21 slot machine is a traditional slot game crafted by the well-known Austrian gaming provider, Novomatic. While the primary gaming area adheres to the typical fruit machine structure, there are some deviations in the design, including a multiplier gauge and a card showcase at the upper section of the main reels. Despite the absence of a dynamic soundtrack, the retro slot machine sounds evoke the essence of the slot’s theme.

Featuring nine paying symbols such as a wild joker, red sevens, watermelons, grapes, golden bells, plums, oranges, lemons, and cherries, the game also introduces a Bonus 21 scatter symbol, positioned alongside other symbols and accumulated in the scatter collector just above the reels.

Generous Wins Through Simple Mechanics

Upon engaging with the 5-Line Bonus 21 slot online, you’ll encounter a 3×3 grid pattern with 5 fixed paylines, correlating with the game’s title. The theoretical return-to-player percentage stands at 95%, with bet sizes ranging from 0.20 to 1,000 credits per spin. Victories are granted when three identical symbols align on a payline, reflected in the payout table below:

Explore Your Fortune with Special Features

According to our assessment of the 5-Line Bonus 21 online slot, the developer has concentrated on a single standout feature that adds an extra layer of excitement.

Wild Feature

The joker wild symbol not only yields payouts independently but also serves as a substitute to form winning combinations with other symbols, excluding the Bonus 21 scatter.

Bonus Feature with Win Multipliers

The primary feature of the 5-Line Bonus 21 online slot is the bonus round. When a Bonus 21 symbol lands on the reels, it is accrued at the top meter. Triggering the bonus game requires three Bonus 21 scatters, initiating a gamble round where players can continue or opt to claim a prize. The objective is to reach as close to 21 without going over. Each card total corresponds to a multiplier (ranging from 1x to 25x), and if the player stops before busting, the multiplier is applied to the original win.

Enjoy More Slot Games for Bustling Fun

Classic slots hold a special place in players’ hearts for a reason. They are often associated with good fortune, and their simplistic visuals focus on the thrill of landing substantial wins. If you desire to savor other blackjack-inspired slot games, consider trying out Simbat’s Club 21 slot and Slot 21 slot game by WinADay.

Immerse Yourself in Novomatic Slots Rich with Aces

After experiencing the 5-Line Bonus 21 slot in demo mode, head over to our Novomatic slots page to explore a variety of slot games for free before venturing into real-money gameplay at a casino.

Jesse Miller iGaming Writer

Last Updated: November 14, 2025