Kings of Crystals III Power Combo: Slot Overview
The rise and rise of the one to three modifier bonus round game continues with the release of All For One Studios' slot Kings of Crystals III Power Combo. As the dashes in the title indicate, this is the third release in a series that began in 2022. Back then, these sorts of slots were more of a novelty, nowadays they are pretty commonplace. To compete with the growing competition, All For One Studios has added features to the base game to round the experience out more, taking some of the weight off the bonus round from having to do everything.
All For One Studios has gone hard on the fantasy angle as they have done in the previous two Kings of Crystals slots. The background is a tapestry of towers, walls, forests, ruins, and fanciful lighting, the works, to produce a scene of regal fantasy, though the spinning prize wheel and row of jackpots do spoil the ambience to a degree. Even so, players who were able to get into the mood and pretend they were kings rallying men to their banner to take on invading forces, or be the invading forces grabbing land from peaceful neighbours in the previous games, should have no trouble replicating the fantasy again this time.

A 5-reel grid is where Kings of Crystals III Power Combo is played, and in the base game, each reel holds 4 rows covered in 40 paylines. Clicking the coins button is where users may choose a stake of $/€0.20 to $/€20, generating a maximum RTP of 96.2% when gambling this way. By clicking the Boost button, the stake increases by 20%, doubling the chance of triggering free spins.
Starting the pay symbols off are 9-A royals awarding 0.7x to 0.8x the bet for 5-of-a-kind, then goblets, gauntlets, and three character symbols, which award 2.5x to 5x the stake for a line of five. Wilds appear on reels 2-5, where they substitute any regular paying symbols in a winning line.
Kings of Crystals III Power Combo: Slot Features

As well as the 1-3 modifier free spins round these games are known for, Kings of Crystals III Power Combo has base game features Power Spin and Fortune Wheel Rewards.
Power Spin
Any base game spin can become a Power Spin. In Wild Power Spin, sticky wild symbols appear in random positions. The number of sticky wilds equals the number shown on the Wild Power Icon. In the Jackpot Power Spin, 2-5 coins land and award a prize of 1x to 10x the bet. In the Multiplier Power Spin, a 2x2 multiplier zone is activated. Any winning line that crosses the zone is multiplied by the value shown in the Multiplier Power Icon.
Fortune Wheel's Rewards
Each base game spin can land a single wheel symbol and 5 wheel symbols trigger the Fortune Wheel, which awards a jackpot, a cash prize, free spins, or grows the powers. Wheel symbols are collected in level containers, which have 5 positions each. After the Fortune Wheel prize is awarded, the prize values move to the next level, becoming more valuable. When all containers are full, the highest level is reached, and it stays there. Up symbols grow the Jackpot Power.
Powered Free Spins
Red, green, and blue scatters are collected above the reels in their respective area when they land. Scatters may randomly trigger 5 free spins with a power active for the round. Combinations of different coloured scatters may randomly trigger 5 free spins with up to 3 powers active. The more scatters collected, the greater the power is during free spins. Free spins are played on a 5x6 grid with 60 paylines.
- Red Scatter Wild Power - Collecting red scatters can grow the number of sticky wilds for free spins up to 10. During the bonus round, sticky wilds are placed in random positions and stay there till it ends. In addition, any wild that lands on a free spin becomes sticky. On returning to the base game, the amount of sticky wilds resets to 3.
- Green Scatter Jackpot Power - Green scatters may randomly grow the Mini, Minor, or Major jackpots. During free spins, golden coins reveal a coloured coin or a cash prize of 1x to 10x the bet. Each jackpot has a container next to it that collects differently coloured coins. When a Jackpot's container is full, the respective prize is awarded. The Mini is worth 10x-35x, the Minor is 20x-70x, the Major is 250x-500x, while the Grand Jackpot is 10,000x the bet.
- Blue Scatter Multiplier Power - Collecting Blue scatters may increase the free spins multiplier up to x10. When free spins trigger, a 1x3 multiplier zone is placed randomly on the reels. At the start of each spin, the multiplier zone expands till it covers the whole grid. Any winning paylines crossing the multiplier zone are multiplied by the value shown in the Multiplier Power Icon. The multiplier values start at the level achieved in the base game and can grow up to x25 in free spins. The multiplier grows each time the Blue Hourglass lands. When free spins end, the multiplier resets to x3. The multiplier zones are applied to cash prizes when Jackpot Power is also active.
Hourglass symbols may land in free spins on the middle three reels. When Multiplier Power is not active, Red Hourglass symbols may land to award +1 free spin. When Multiplier Power is active, the Blue Hourglass may land to add +1 free spin and grow the Multiplier Power. When free spins end, any activated power is reset.
Upsizer
When free spins trigger, players may use the Upsizer to pay for upgrades such as extra sticky wilds, a higher free spins multiplier, or access to max jackpot levels, with prices displayed.

Kings of Crystals III Power Combo: Slot Verdict
This is the third release in the series, and when coupled with the number of these one to three modifier free spins games released since the original came out, means Kings of Crystals III Power Combo is a bit predictable. Some of the spotlight has been taken off the bonus round, but the focus remains on landing scatters to boost powers, and at times launch a round of free spins with 1, 2, or even 3 powers active. As far as this style of gaming goes, Kings of Crystals III Power Combo performs well enough to reassure and excite gamblers enthused by what came before it.
Differentiating Kings of Crystals III Power Combo from the last two is the extra action occurring in the base game. Before, it was all pretty much just collecting scatters to increase powers and trigger free spins. This time, the entertainment is spread out with Power Spins giving a taste of the free spins features, and the Fortune Wheel bestowing gifts. So whilst neither produced anything memorable, the experience was more rounded out. The bonus round is still a main star, triggering with the one, two, or three modifier combo these games are known for. Not much to say about the modifiers, really, other than they do the job.
Scroll through the Power Combo lineup and players will find no shortage of similar options, to the point where they begin to blur together. The Kings of Crystals series was there early on, and Kings of Crystals III Power Combo sticks rigidly to that established formula - it's functional, inoffensive, and unlikely to surprise anyone who has played even a handful of Games Global titles in this vein.
Kings of Crystals III Power Combo does little to evolve the series, offering more of the same modifier-driven action without enough new ideas to feel particularly exciting.

