Action Boost SpinUP Gladiator Slot Review
A red-and-white awning stretches over the sand, the crowd packs the tiers behind the stone arches, and three fat pots of gold coins – green, red and purple – sit on a ledge above the reels, each stamped with its own emblem. That ledge is the whole game. The reels beneath it exist to feed coins into those pots, and whichever pot fills decides the show you get, which makes the base game a waiting room with a brazier burning beside it.
SpinPlay Games run the format on a 5×4 grid with 20 paylines, 96.49% RTP and high volatility, stakes from 0.20 to 50.00. It shares its bones with 3 Lucky Rainbows Action Boost SpinUP and Action Boost SpinUP Knight’s Ascension. Here’s how the arena version holds up.
Base Game & Features
The base game is a 5×4 reel set with 20 fixed paylines in normal play, stretching to 40 when the Green Coin feature takes over. Wins run left to right from the first reel, and only the highest combination on each payline pays.
The game hits at 33.57%, so roughly a third of spins return something. High volatility keeps most of those returns small. Colosseum symbols are wild, substituting for everything except the bonus symbols and forming their own winning combinations.
That’s the base game’s one trick. Everything else on screen is coin collection.
Symbol Values
The Gladiator leads the paytable, with the mid-tier armoury and six royals behind it. Values below are multiples of the line bet.
- Gladiator – 3 pays 1x, 4 pays 2x, 5 pays 10x
- Horse / Chariot – 3 pays 0.5x, 4 pays 1x, 5 pays 5x
- Axe / Mace – 3 pays 0.5x, 4 pays 1x, 5 pays 4x
- A, K, Q, J, 10, 9 – 3 pays 0.2x, 4 pays 0.5x, 5 pays 2x
The total payout on any spin is the sum of all payline wins, and if multiple combinations land on a single payline, only the highest one counts. The Gladiator’s 10x for five of a kind is the best the base reels can do on their own, which tells you where the game’s real money lives.
Coin Collection and the Flag Spin
Coloured coins land on the reels and collect into the matching bag above them. When a Gold Helmet Coin appears it collects to the Gold Helmet, and it can set off the Flag Spin, which plays a single spin across every flag at once.
Any coins landing on the flags during that spin trigger the free spins, and the exact combination of coins decides which Action Boost SpinUP round you’re dealt. Coins can arrive carrying no upgrade, one upgrade or two.
Action Boost SpinUP Gladiator Free Spins
Every round awards 10 free spins, played at the same bet multiplier as the triggering spin. Which of the three you get depends on the coins that collected, and if coins of every colour trigger on the same base spin, all three features run together.
Green Coin SpinUP
The wild-heavy round. All reels grow to a height of six symbol positions and 40 lines are played, so the grid physically expands. Any reel showing a Wild is nudged until the entire reel is wild, with wins paid after the nudge.
Gold Coins award a bonus credit prize or a Flag Spin, and the Flag Spin can pay credit, upgrade a symbol to the Gladiator for the rest of the round, or hand out a Green upgrade. Upgrades are capped at two, and each one adds extra wilds to the reels on the following spins for the remainder of the feature. Symbols upgrade before any wins are paid.
Red Coin SpinUP
The jackpot round, built on a shield ladder that Gold Coins feed. The targets:
- 7 Gold Shields – MEGA jackpot
- 6 Red Shields – MAXI jackpot
- 5 Purple Shields – MAJOR jackpot
- 4 Blue Shields – MINOR jackpot
- 3 Green Shields – MINI jackpot
Once a jackpot’s shields are collected it pays and resets. Flag Spins in this round award shields, credit, a jackpot boost for the remaining spins, or a Red upgrade. Upgrades are capped at two, and each one knocks one shield off every collection target for the rest of the round.
Purple Coin SpinUP
The multiplier round. Gold Coins pay a credit prize, one or two extra spins, or a Flag Spin, and the Flag Spin can also award up to three spins or a Purple upgrade.
The multiplier starts at 2x, one upgrade takes it to 3x and two take it to 5x, applied to all line wins and bonus credit prizes.
Multiple Coin SpinUP
When all three features trigger on a single base spin, the round plays everything at once. The Purple multiplier covers line wins and credit prizes but not jackpots, and every upgrade awarded during the round adds two extra spins.
Getting wild nudges, the shield ladder and a climbing multiplier in the same ten spins is what the whole format is built to deliver. The five jackpots are the stated prizes on the board, and everything above them is uncapped.
Our Honest Verdict
Overall Rating: 7.6/10
Long stretches here feel like sitting in the stands waiting for the gates to open: you feed coins to three pots, the reels pay crumbs, and nothing between collections moves anything. The reason to sit through it is the show itself.
That show is worth the wait. When a bag fills, this game delivers three genuinely different spectacles rather than one round wearing three colours. A grid that grows and turns whole reels wild, a shield ladder that resets and can pay twice in one round, a multiplier that climbs to 5x, and the rare spin where all three arrive together.
The weakness is just as real: there’s no win ceiling anywhere, so a session has no number to aim at and the jackpots are the only fixed targets on the wall. It suits collectors, jackpot hunters and anyone who enjoys watching a system build itself over ten spins. For the patient, the arena is open and the pots fill eventually.
Action Boost SpinUP Gladiator FAQs
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What is the RTP of Action Boost SpinUP Gladiator?
The RTP is 96.49%, which sits just above the typical industry average. -
How do you trigger free spins in Action Boost SpinUP Gladiator?
Coloured coins collect into the bag of the same colour above the reels, and the combination that collects when the feature triggers determines which of the three Action Boost SpinUP rounds is awarded. A Gold Helmet Coin can also set off a Flag Spin, which triggers the free spins when coins land on the flags. -
What does the Red Coin Action Boost SpinUP feature do?
It awards 10 free spins built around a shield collection ladder. Collect 7 Gold Shields for the MEGA jackpot, 6 Red for MAXI, 5 Purple for MAJOR, 4 Blue for MINOR or 3 Green for MINI. Upgrades can reduce every target by one shield for the rest of the round. -
Can free spins retrigger in Action Boost SpinUP Gladiator?
Yes. In the Purple round, Gold Coins and Flag Spins can award one, two or three extra spins, and in the multiple-coin round every upgrade awarded grants two additional spins. -
What is the maximum multiplier in Action Boost SpinUP Gladiator?
The Purple Coin round starts at a 2x multiplier. One upgrade raises it to 3x and a second raises it to 5x, applied to line wins and bonus credit prizes, though not to jackpots. -
How many paylines does Action Boost SpinUP Gladiator have?
The base game plays 20 paylines on a fixed basis. The Green Coin round expands the game to 40 lines with reels six symbols high. -
What is the minimum and maximum bet on Action Boost SpinUP Gladiator?
Stakes run from 0.20 to 50.00 per spin. -
Who makes Action Boost SpinUP Gladiator?
SpinPlay Games, the studio behind the wider Action Boost and Action Boost SpinUP family of slots.
