Kings Of Crystals Slot Review

Slot Rating 6/ 10

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Kings Of Crystals Slot Review

Slot Details

Kings of Crystals is an online slot, created by All41 Studios, exclusively for Microgaming online casinos, released in 2022.

The game’s theme is categorized as ‘Magic’, where all of the symbols revolve around medieval fantasy, like crowns and kings.

Slot Data

  • Reels: 5
  • Rows: 4
  • Paylines: 40
  • RTP: 96.40%
  • Wilds: Yes
  • Free spins: Yes
  • Bonus game: No
  • Progressive: No
  • Mobile: Yes

Slot Design

Kings of Crystals online slot has a slightly different gameboard of the usual 5×3, consisting of 5 reels, 4 rows and 40 fixed paylines.

The game’s RTP is 96.40% and its variance is set to VERY HIGH.

The game’s minimum bet per spin is set to 0.20$ and it goes up to 20.00$

The graphics and animations are mediocre, for an online slot released in 2022, but perhaps All41 Studios, were looking to capture that medieval vibe.

One of the things that catches the eye is the Blue King symbol that looks quite different, almost like a magical creature from a different time.

The bottom part of the slot, where your balance, winnings and bets are displayed is way too simplistic, just a bunch of text labels.

Come on, for a 2022 online slot, there should be a better UI design, with at least some effort put into it.

Slot Features

  • Wilds: The Wild symbol in this game shows up only on reels 2 3 and 4 and substitute for all symbols but scatters and coin symbols. In addition the Wilds become nudging wilds when Free Spins are active.

  • Free Spins: Three different scatters in this game triggering different free spins with different perks. The red scatter triggers 5 free spins with nudging wilds on 100 paylines. The feature extends the reels by adding 2 positions onto each reel. When at least 1 wild lands, the reel nudges to fill in the whole reel with wilds. The green scatter triggers 10 spins with a chance to win the grand jackpot. The blue scatter triggers 5 free spins with up to a 10x multiplier. Landing scatter combinations triggers free spins with combined features.

  • Coin Symbol: Coin symbols can contain a cash prize or a letter. Cash prizes can be from 1x to 10x the triggering bet. Collecting the letters that spell the jackpot names, win the corresponding jackpot, for example getting letters G,R,A,N,D will award the Grand Jackpot. The Grand jackpot is 10,000x the triggering bet, Major is 500x triggering bet, Minor is 50x triggering bet and Mini is 25x triggering bet.

  • Buy Feature: The buy feature allows you to buy free spins, either from a single kind or combinations of 2 or 3 scatters. The cost varies depending on your combinations but it can be anywhere from 20x to 110x the triggering bet.


Kings of Crystals online slot is a decent game, but not really a worthy release for a 2022 product.

The features are decent, but we believe All41 Studios, could have done a better job with the design of the slot and its symbols.

We still recommend this online slot to our players, as the features make it worthwhile, especially if visual presentation does not matter to you.


Mitko Atanasov

Mitko Atanasov is a highly respected expert in the online casino and slot review industry, boasting over 14 years of experience. He is dedicated to providing unbiased and accurate reviews, empowering players to make informed decisions. His vast knowledge and expertise make him a trusted source of information for both novice and experienced players.

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Last Updated On: 07-22-2023

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