RTP
96.1%
Minimum wager
0.20
Slot category
Video Slots
Volatility
High
Number of reels
5
Progressive jackpot
No
Popularity
Maximum wager
150
Provider
Yggdrasil Gaming
Bonus features
Yes
Paylines
20
Theme
Stars
All Star Knockout slot: features and gameplay
All Star Knockout gives traditional slots a fresh spin with 5 reels instead of 3. Collect stars as you play to fill the award board and unlock the knockout bonus game. The game description says wins of more than half a million Euros or Dollars may be possible; this is a potential outcome, not a guarantee.
Theme and Story Line
Fruit symbols and 7s provide a retro look, and a star-filled award board adds a collection mechanic. When star symbols land, they fill spaces associated with the game’s eight symbols. Complete a card to activate the All Star Knockout Bonus, the main feature beyond regular spins.
Graphics, Sound, and Animation
All Star Knockout uses a 16:9 display and was released 11 March 2020. It supports instant play in mobile and desktop browsers, including Chrome, Firefox, IE and Safari; some online casinos may also offer a downloadable app. Simple 3D artwork recreates a classic slot look with fruit, 7s and bar symbols.
Yggdrasil pairs symbols familiar from older slots with contemporary presentation. Animated details, an upbeat modern soundtrack and distinctive sound effects give the game a current feel.
Top Casinos to Play All Star Knockout:
Gameplay
Yggdrasil advertises a maximum win of €675,450. The layout has 5x4 reels, showing 20 symbols at a time, and 20 paylines. Wins run from left to right across sequences of 3, 4 or 5 matching symbols on reels 1-2-3, 1-2-3-4 or 1-2-3-4-5, respectively.
The game has 8 symbols across 20 paylines. ‘KO’ tops the award table: 5 matching symbols pay 100x, 4 pay 60x and 3 pay 30x the ‘bet per line’. Other symbols include the red 7, white 7 and blue 7, plus 4 fruit icons: cherry, orange, plum and lemon. Symbols appear in stacks of 1, 2 or 3.
Calculate the ‘bet per line’ by dividing the ‘total spin bet’ among the 20 fixed paylines. For instance, a total wager of 40.00 per spin equals 2.00 per line (40 total bet ÷ 20 pay lines). The ‘KO’ 5-symbol combination pays 100x the ‘bet per line’, so a 2.00 line wager returns 100 x 2.00, or 200.00.
For the complete payout list, open the slot’s mobile menu and select ‘i’. The paytable shows the award for each symbol. You can change your wager while viewing the table, and the listed combination payouts update accordingly.
Controls include a ‘Speaker’ button to mute the sound and an ‘Auto spins’ option. Set the ‘total stake’ per spin, then choose between 10 and 1,000 automatic spins.
Bonuses and Free Spins
Award Board: Each of the 8 symbols has 5 spaces on the board. When a star lands on the reels, it randomly fills a space for one symbol. Progress is saved separately for each stake: changing the wager resets the board for that stake, while returning to a previous stake restores its saved stars.
All Star Knockout: Filling all 5 spaces on any award card starts the All Star Knockout bonus. The round awards 5 free spins. During the free spins bonus, completing more cards can award additional spins.
Free Spins Multipliers: At the start of the bonus, one multiplier—x5, x4, x3 or x2—is chosen and applies to every win.
Random Bonus: A re-spin can start at random during play. It is described as guaranteeing a win on the first spin, followed by more re-spins until no further win occurs.
Bet Sizes, RTP, and Variance
Use the ‘STAKE’ setting to choose a wager from 0.20 to 150.00 per spin. This range includes smaller bets and stakes of 150.00 per spin for high rollers. Yggdrasil rates All Star Knockout’s volatility at 71.5%; the game is classified as medium to high variance. The stated RTP is 96.1%, described as average for a Yggdrasil slot.
Conclusion
Yggdrasil Gaming’s All Star Knockout brings a familiar fruit-and-7s style into a modern slot format. The award card is central to its bonus play, but completing it does not guarantee a profit. Payouts appeared more generous in the bonus than in base play; that is an observation, not a prediction of future results.
Evan Carrington brings more than 12 years of experience in the iGaming industry, specializing in online casino reviews, slot game analysis, and player safety assessments. Their expertise includes casino licensing, RTP, volatility, bonus terms, and withdrawal policies. Combining hands-on reviews with independent research, Evan provides clear, evidence-based coverage to help players understand gambling platforms, their features, and possible risks.
