Introduction to Action Boost SpinUP Knight's Ascension
Action Boost SpinUP Knight's Ascension is a casino slot from SpinPlay Games featuring the Flag Spin Feature we have seen in previous games, such as the gladiator adventure Action Boost SpinUP Gladiator. It consists of three flags to the left of the reels, where you can win spins that can land coins that trigger the Free Spins, or improve them if you’re already playing the feature. The reels are filled with pretty typical theme elements, such as horses, axes, and arrows. Let’s see what these symbols can award you.
If you want a closer look at Action Boost SpinUP Knight’s Ascension, you can play the free demo at the top of this page.

Theme, Gameplay, and Payouts
Action Boost SpinUP Knight's Ascension is a video slot from SpinPlay Games with 5 reels, 4 rows, and 20 paylines. The Min.bet is 0.2, and the Max.bet is 40. The game has a generous RTP of 96.49% and high volatility. Scoring the max win will give you 6,250x the bet, and you make wins on about every third spin with a hit frequency of 33.57%.
Action Boost SpinUP Knight’s Ascension is set in the countryside with green grass and some stones on the ground, and white fluffy clouds in the sky. In the upper-right corner is a massive castle, and beneath it is the game’s logo. Above the reels are three treasure chests in green, red, and purple, and to the left of the reels are three stripes with the same colors. The graphics look like a mix of a video game and a cartoon.
To make a win, you need to land at least 3 matching symbols on one of the paylines going left to right. All wins must start on the first reel to the left, and you can access the game on mobile phones, tablets, and desktop computers.
The lower-paying symbols in Action Boost SpinUP Knight's Ascension are 9, 10, J, Q, K, and A. They pay 1x the bet for wins containing 5 symbols. The higher-paying symbols are arrows, axes, birds, horses, and knights. These five symbols award between 2x and 5x the bet for a 5-of-a-kind win. The Wild Symbol, depicted by a sword, substitutes all mentioned symbols in making wins in paylines. They don’t replace Bonus Symbols.
Special Features & Slot Mechanics
What is the max win in the slot Action Boost SpinUP Knight's Ascension?
You can win up to 6,250x the bet.
What features are available in the slot Action Boost SpinUP Knight's Ascension?
The features are Wild Symbol, Flag Spin Feature, and Action Boost SpinUP Free Spins.

Wild Symbol
The Sword symbol acts as a Wild Symbol. It can replace any other symbol except bonus symbols to help form winning combinations.
Flag Spin Feature
Whenever a gold coin appears, there is a chance to trigger the flag spin feature. The animation has no effect on whether the feature is triggered. Each gold coin that lands on the reels is collected into the gold crown to the left, which sits atop three banners (flags) in green, red, and purple.
When the feature starts, all flags become active, and symbols spin on them during the Flag Spin. If one or more coins land on the flags during this spin, you trigger the Action Boost SpinUP Free Spins. The exact combination of coins that land decides which Action Boost SpinUP is awarded. Coins can land with no upgrades, one upgrade, or two upgrades.
Action Boost SpinUP Free Spins
There’s a chance to trigger the Action Boost SpinUP Free Spins whenever one or more coins appear, or through the Flag Spin feature. Each coin that lands is collected into the chest of the same color above the reels. The combination of coins collected when the free spins begin determines which Action Boost SpinUP is awarded.
Green Coin Action Boost SpinUP
This feature awards 10 free spins played on 6 reels and 40 paylines. If a wild symbol appears on a reel, that reel is nudged so all positions become wild symbols. Every gold coin that appears awards either a bonus credit prize or a flag spin. The flag spin can award a bonus credit prize, upgrade a symbol to a knight for the rest of the free spins, or give a green Action Boost SpinUP upgrade.
The green Action Boost SpinUP can be upgraded up to two times, with each upgrade adding extra wilds to the reels on the following spins for the rest of the feature.
Red Coin Action Boost SpinUP
The Red Coin Action Boost SpinUP feature awards 10 free spins, with every gold coin awarding a shield, a bonus credit prize, or a flag spin. Collecting seven gold shields wins the Mega jackpot 5,000x), six red shields win the Maxi jackpot (250x), five purple shields win the Major jackpot (25x), four blue shields win the Minor jackpot (10x), and three green shields win the Mini jackpot (5x). When all shield prizes for a jackpot are collected, that jackpot is awarded, and its shields are reset.
The flag spin can award shields, a bonus credit prize, a jackpot boost, or a red Action Boost SpinUP upgrade. A jackpot boost increases the value of the related jackpot for the rest of the free spins. The red Action Boost SpinUP can be upgraded up to two times, and each upgrade reduces the number of shields needed for each jackpot by one for the remainder of the feature.
Purple Coin Action Boost SpinUP
This feature awards 10 free spins, and every gold coin that appears can award a bonus credit prize, one free spin, two free spins, or a flag spin. The flag spin can award a bonus credit prize, one free spin, two free spins, three free spins, or a purple Action Boost SpinUP upgrade. Each purple Action Boost SpinUP upgrade increases the active multiplier.
The feature starts with a 2x multiplier. One upgrade raises it to 3x, and two upgrades raise it to 5x. All payline wins and bonus credit prizes are multiplied by the active multiplier.

Multiple Coin Action Boost SpinUP
The Multiple Coin Action Boost SpinUP feature gives you 10 free spins with all Action Boost SpinUP features played at the same time. The multiplier from the purple Action Boost SpinUP applies to all line wins and bonus credit prizes but does not apply to jackpots. If an Action Boost SpinUP upgrade is awarded during free spins, two extra spins are added.
Final Thoughts on Action Boost SpinUP Knight's Ascension
Action Boost SpinUP Knight’s Ascension feels like that medieval movie sequel nobody asked for, but still ends up watching on a rainy Sunday. It looks fine, it works fine, and it occasionally does something mildly exciting, but it never really surprises you. If you’ve ever spun the reels of Action Boost SpinUP Gladiator, you’ll feel just at home since this is a so-called reskin. The flow and mechanics are identical; the only change is that the developer has swapped sandals and shields for horses and swords.
The Flag Spin feature and the different Action Boost SpinUP modes do a decent job of keeping things busy: there’s always some coin, chest, or banner doing something on screen. Unfortunately, busy doesn’t always mean thrilling. Most of the time, you’re watching a lot of animations that feel more dramatic than the actual payouts behind them. And speaking of animations: this game won’t win any prizes for best look either. It looks somewhere between a mobile game ad and a Saturday morning cartoon.
Action Boost SpinUP Knight's Ascension from SpinPlay Games ultimately feels like a reskinned rerun that barely passes the time but won’t be remembered once you close the game.



