Undefeated Xerxes

(Play'n GO) Slot Review

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Undefeated Xerxes: Slot Overview

Thanks to the brave stand of the 300 Spartan warriors (and their allies), it might be easy to forget the fact that the invading army led by the Persian King Xerxes I actually won the battle at Thermopylae before pressing deeper into Greek territory. However, after some time, Xerxes retreated back to Persia, and the army he left behind in Greece was eventually defeated, ending the Persian invasion. Some may class a failed invasion as a defeat. If so, then not sure why developer Play'n GO has titled its game Undefeated Xerxes, but never mind, this is an online slot review, not a history exam.

Despite the questionable title, Undefeated Xerxes starts with an excellent animated intro, pulling players deep into its Ancient Greek world. It's as if Play'n GO has brought those paintings you see on Ancient Greek pottery, the black and yellow pieces, to life to set the scene, which it does well. This clever idea and its slick execution triggered enthusiasm to see what else might happen, though while the in-game background imagery and symbols are of a high standard, they weren't anywhere near as strikingly memorable.

Undefeated Xerxes slot
Undefeated Xerxes slot - base game

Undefeated Xerxes does battle on a 5-reel, 4-row gaming matrix, arming players with 30 paylines for the purpose of win calculations. Like a battle, presumably, the math model is highly volatile, and there are several RTP configurations where the default value is 96.2%. The standard sort of Play'n GO stats. Users may pick bets from 10 c to $/€100, and while the free spins round has one of Undefeated Xerxes' most sought-after moments, probably the most sought-after moment, players are unable to skip the queue by buying the feature.

Time to clash spear on shield at the paytable, where there are literally 10 to A card rank symbols (done up Greek-style) on shields as the lower value symbols, then crossed swords, a helmet, and some armour as 3 higher paying symbols. Hitting a line of 5 royals is worth 2 to 2.8 times the stake, while the other 3 symbols pay 4-6x the bet for 5 OAK. There is also a hero symbol worth 25 times the bet when 5 of them create a winning line.

Undefeated Xerxes: Slot Features

Undefeated Xerxes slot
Undefeated Xerxes slot - free spins

The features in Undefeated Xerxes might not be a hotbed of innovative thought, but they can work well in conjunction with each other when brought together like a well-drilled hoplite phalanx.

Wilds and Wild Multipliers & Wild Frames

Wild symbols substitute for all other symbols except scatters while appearing on all reels. Any win including wild multipliers is multiplied by the value shown on the wild multiplier. Wild multipliers accumulate when more than one is present on a payline, and they have values of x2, x3, x4, or x5. A line of 5 winning wild symbols pays 25 times the bet. Moreover, in the base game, 3 to 4 wild frames may randomly be placed on the reels, with a chance to be upgraded. Wild Frames all transform into wilds and wild multiplier symbols.

Free Spins

Landing 3 scatters in the base game triggers 10 free spins. Occasionally, the guaranteed scatter feature may activate on any regular spin, guaranteeing 2 scatter symbols on the first two reels. Scatter symbols do not appear during the free spins round, meaning they cannot be retriggered. During free spins, when wilds land, they leave a frame on their position, which remains in place till the round ends. A second wild on the same position transforms the wild frame into an upgraded wild frame. On the last free spin, all wild frames transform into wild symbols and upgraded wild frames transform into wild multipliers. For the final spin, the hero symbol gets an x25 multiplier. All multipliers on the same payline are added together.

Undefeated Xerxes slot
Undefeated Xerxes slot - free spins

Undefeated Xerxes: Slot Verdict

Undefeated Xerxes is a slot that not only condenses many of its best moments into its bonus game; it condenses them down even further into the final free spin of the round. Till then, the game can be pretty slow going, a little boring even as the base game spins float by in a haze of not much activity. Not always, necessarily. Wild frames may appear, wild multipliers might pop in from time to time, but the base game can also drag, one thing to keep in mind. Adding bounce to the mood, Undefeated Xerxes boasts some high-quality animated sequences, and the Play'n GO art team has done a really nice job with those.

It might be easy to stand around wondering what the whole point is - until that last, potentially epic, potentially disappointing final free spin comes around. Although the 9 free spins leading to the final one are able to dial up the tension, provided a good number of reel positions get hit with wild frames and/or wild multiplier frames. If it all goes to plan, then watching wilds and wild multipliers populate the applicable frames can be quite a hand-rubbing with glee exercise. Play'n GO notes a maximum win number of 10,000x the bet, and a solid final spin could well make up a sizable chunk of reaching that figure. Maybe the whole chunk?

Therefore, a lot rides on that one spin, and how it turns out may have a strong influence on how a player reacts to Undefeated Xerxes. Have a good last free spin, and it might be easier to look past the average base game and the lack of major innovation to see Undefeated Xerxes' benefits, such as the sweet animations. Strike out at the end of a free spins round, and the game's mid-range so-so elements may be more glaringly obvious.


Players may struggle to find much in the way of a major flowering of new ideas, but Undefeated Xerxes brings what it has together quite nicely.

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